diff --git a/classes/category.py b/classes/category.py
index e442f8b..cb00c5e 100644
--- a/classes/category.py
+++ b/classes/category.py
@@ -128,9 +128,7 @@ class Category:
         else:
             self._scores_map[score.user] = score
 
-        self._scores_map = dict(
-            sorted(self._scores_map.items(), key=lambda x: x[1].value, reverse=not self.ascending)
-        )
+        self._scores_map = dict(sorted(self._scores_map.items(), key=lambda x: x[1].value, reverse=not self.ascending))
 
     def clear(self) -> None:
         """
@@ -139,6 +137,15 @@ class Category:
         """
         self._scores_map.clear()
 
+    def get_users(self) -> "list[str]":
+        """
+        Returns list of users in this category.
+
+        Returns:
+            list[str]: List of all users in category.
+        """
+        return self._scores_map.keys()
+
     def get_user_score(self, user: str) -> Score:
         """
         Gets a user's score. Returns None if user is not found.
@@ -153,15 +160,19 @@ class Category:
             return self._scores_map[user]
         return None
 
-    def remove_score(self, score: str) -> None:
+    def remove_score(self, user: str) -> Score:
         """
         Removes a user's score from dictionary storage.
 
         Args:
-            score (str): user whose score to remove
+            user (str): user whose score to remove
+
+        Returns:
+            Score: User's Score or None
         """
-        score = self._scores_map.pop(score)
-        del score
+        if user in self._scores_map:
+            return self._scores_map.pop(user)
+        return None
 
     def to_dict(self) -> dict:
         """
diff --git a/classes/guild.py b/classes/guild.py
index 30c1177..bcdd4fe 100644
--- a/classes/guild.py
+++ b/classes/guild.py
@@ -16,6 +16,7 @@ class Guild:
         Args:
             guild_id (int): Discord Guild id of new Guild
         """
+        self._category_pad_length: int = 26
         self._guild_id: int = guild_id
         self._highscore_channel_id: int = 0
         self._submission_channel_id: int = 0
@@ -45,6 +46,7 @@ class Guild:
             Guild: Populated Guild object
         """
         guild = cls(guild_id)
+        guild.category_pad_length = data["category_pad_length"]
         guild.highscore_channel = data["highscore_channel_id"]
         guild.submission_channel = data["submission_channel_id"]
         guild.username_length = data["username_length"]
@@ -56,10 +58,30 @@ class Guild:
 
         return guild
 
+    @property
+    def category_pad_length(self) -> int:
+        """
+        Getter for Category Pad Length.
+
+        Returns:
+            int: Length to pad each category entry.
+        """
+        return self._category_pad_length
+
+    @category_pad_length.setter
+    def category_pad_length(self, length: int) -> None:
+        """
+        Setter for Category Pad Length.
+
+        Args:
+            length (int): New length to set.
+        """
+        self._category_pad_length = length
+
     @property
     def guild_id(self) -> int:
         """
-        Getter for Guild id
+        Getter for Guild id.
 
         Returns:
             int: Guild id
@@ -180,6 +202,17 @@ class Guild:
             return self._table_map[table_name]
         return None
 
+    def get_tables(self) -> dict:
+        """
+        Getter for dict of table names and tables.
+
+        Returns:
+            dict: Dictionary consisting of the Table Names and the Table object itself.
+        """
+
+        # I don't know if this is const data. Don't want to allow data to be written as a result of this function.
+        return self._table_map
+
     def to_dict(self) -> dict:
         """
         Creates python dictionary object from class data.
@@ -190,6 +223,7 @@ class Guild:
         """
         data: dict = {}
 
+        data["category_pad_length"] = self.category_pad_length
         data["highscore_channel_id"] = self.highscore_channel
         data["submission_channel_id"] = self.submission_channel
         data["tables"] = {}
diff --git a/classes/score.py b/classes/score.py
index 1f184f8..c6f4344 100644
--- a/classes/score.py
+++ b/classes/score.py
@@ -38,6 +38,16 @@ class Score:
         """
         return self._user
 
+    @user.setter
+    def user(self, username: str) -> None:
+        """
+        Setter for score's username.
+
+        Args:
+            username (str): username to set to
+        """
+        self._user = username
+
     @property
     def value(self) -> int:
         """
diff --git a/classes/table.py b/classes/table.py
index 0f2af7e..e12224e 100644
--- a/classes/table.py
+++ b/classes/table.py
@@ -123,6 +123,16 @@ class Table:
         if category.name not in self._categories_map:
             self._categories_map[category.name] = category
 
+    def get_categories(self) -> dict:
+        """
+        Getter for dict of category names and categories.
+
+        Returns:
+            dict: Dictionary consisting of Category names and Category objects.
+        """
+        # I don't know if this is const data. Don't want to allow data to be written as a result of this function.
+        return self._categories_map
+
     def get_category(self, category_name: str) -> Category:
         """
         Getter for specific category. Returns None if not found.
diff --git a/cogs/commands/__init__.py b/cogs/commands/__init__.py
new file mode 100644
index 0000000..d383dad
--- /dev/null
+++ b/cogs/commands/__init__.py
@@ -0,0 +1,23 @@
+"""
+Cog loader. Adds all command cogs to the bot.
+"""
+
+from nextcord.ext import commands
+
+# Command classes
+from .message_management import MessageManagementCog
+from .settings_management import SettingsManagementCog
+from .data_management import DataManagementCog
+
+# Views for commands
+from .views.update_username_verify import UpdateUsernameVerifyView
+
+# This function will be called when this extension is loaded.
+# It is necessary to add these functions to the bot.
+def setup(bot: commands.Bot):
+    """
+    Adds all command classes to bot.
+    """
+    bot.add_cog(DataManagementCog(bot))
+    bot.add_cog(MessageManagementCog(bot))
+    bot.add_cog(SettingsManagementCog())
diff --git a/cogs/commands/data_management.py b/cogs/commands/data_management.py
new file mode 100644
index 0000000..8bce454
--- /dev/null
+++ b/cogs/commands/data_management.py
@@ -0,0 +1,243 @@
+"""
+Commands for managing the tables/categories/scores for a Guild.
+"""
+
+from typing import Optional
+
+import nextcord
+from nextcord.ext import commands
+
+from highscores import highscores_data  # pylint: disable=import-error
+from utilities.utils import (  # pylint: disable=import-error
+    autofill_categories,
+    autofill_tables,
+    autofill_users,
+    send_highscore_message,
+)
+
+from .views.update_username_verify import UpdateUsernameVerifyView
+
+
+class DataManagementCog(commands.Cog, name="Table Management"):
+    """
+    Class holds commands for managing the data storage of the highscores.
+    """
+
+    def __init__(self, bot: commands.Bot):
+        """
+        Default constructor for DataManagement class. Sets internal bot variable.
+        """
+        self._bot: commands.Bot = bot
+
+    @commands.Cog.listener()
+    async def on_ready(self):
+        """
+        Called when cog is loaded. Adds views required for DataManagement commands.
+        """
+        self._bot.add_view(UpdateUsernameVerifyView())
+
+    @nextcord.slash_command(default_member_permissions=nextcord.Permissions(administrator=True))
+    async def delete(self, interaction: nextcord.Interaction):
+        """
+        Parent slash command for deleting things. Never called.
+        """
+
+    @delete.subcommand(description="Deletes all scores for this guild. Used for testing. Do Not Use.")
+    async def scores(self, interaction: nextcord.Interaction):
+        """
+        Warning: This command only works for developers.
+
+        A command which deletes all scores in all tables for this guild.
+        Command limits to admins to prevent devs from usings on non-test servers.
+        """
+        # only allow AlwaysCompiling to use.
+        # If you are a developer and want to use command, can add name to list
+        if interaction.user.id == 206602713511886849:
+            for table in highscores_data.get_guild(interaction.guild_id).tables:
+                for category in table.categories:
+                    category.clear()
+            highscores_data.save_guild_data(highscores_data.get_guild(interaction.guild_id))
+            await interaction.response.send_message(f"Cleared score data for {interaction.guild.name}.", ephemeral=True)
+        else:
+            await interaction.response.send_message(
+                "You shouldn't be using this command. Deletes everything.", ephemeral=True
+            )
+
+    @delete.subcommand()
+    async def user(self, interaction: nextcord.Interaction):
+        """
+        Subcommand parent for deleting user information. Never called.
+        """
+
+    @user.subcommand(
+        description="Removes all of a user's scores. Warning: data is destroyed, use with case.",
+    )
+    async def from_all(
+        self,
+        interaction: nextcord.Interaction,
+        username: str = nextcord.SlashOption(
+            description="User to remove scores for. Note: This is not always a user's discord name."
+        ),
+    ):
+        """
+        Searches all of guild's scores data for any score from the user. Removes. Updates table
+        message is user was removed from that table.
+
+        Args:
+            interaction (nextcord.Interaction): Interaction that invoked the command.
+            username (str): User to remove from highscores
+        """
+        guild = highscores_data.get_guild(interaction.guild_id)
+
+        user_was_found: bool = False
+
+        # remove user from all tables and categories
+        for table in guild.tables:
+            table_updated: bool = False
+            for category in table.categories:
+                # user has a score in category
+                if category.remove_score(username):
+                    user_was_found = True
+                    table_updated = True
+
+            if table_updated:
+                await send_highscore_message(interaction.guild.get_channel(guild.highscore_channel), guild, table)
+
+        if not user_was_found:
+            await interaction.send(f'User "{username}" was not found.', ephemeral=True)
+        else:
+            await interaction.send(f'User "{username}" was removed from all tables.')
+            highscores_data.save_guild_data(guild)
+
+    @user.subcommand(description="Deletes a user's scores from a category.")
+    async def from_category(
+        self,
+        interaction: nextcord.Interaction,
+        table_name: str = nextcord.SlashOption(description="Table to delete user from.", required=True),
+        category_name: str = nextcord.SlashOption(description="Category to delete user from.", required=True),
+        user_name: str = nextcord.SlashOption(description="User to delete.", required=True),
+    ):
+        """
+        Removes a user from a category. Uses autofill functions to fill out table_name, category_name, and user_name.
+
+        Args:
+            interaction (nextcord.Interaction): Interaction that invoked the command.
+            table_name (str): Table to remove user from. Is SlashOption.
+            category_name (str): Category to remove user from. Is SlashOption.
+            user_name (str): The user to remove. Is SlashOption.
+        """
+
+        guild = highscores_data.get_guild(interaction.guild_id)
+
+        try:
+            guild.get_table(table_name).get_category(category_name).remove_score(user_name)
+            await send_highscore_message(
+                interaction.guild.get_channel(guild.highscore_channel), guild, guild.get_table(table_name)
+            )
+            await interaction.response.send_message(
+                f'User "{user_name}" removed from "{category_name}".', ephemeral=True
+            )
+
+        except nextcord.errors.ApplicationInvokeError:
+            await interaction.response.send_message("Invalid parameter(s).", ephemeral=True)
+
+    @user.subcommand(description="Deletes a user's scores from entire table.")
+    async def from_table(
+        self,
+        interaction: nextcord.Interaction,
+        table_name: str = nextcord.SlashOption(description="Table to delete user from.", required=True),
+        user_name: str = nextcord.SlashOption(description="User to delete.", required=True),
+    ):
+        """
+        Removes user from a table. Uses autofill functions to fill out table_name and user_name.
+
+        Args:
+            interaction (nextcord.Interaction): Interaction that invoked the command.
+            table_name (str): Table to remove user from. Is SlashOption.
+            user_name (str): The user to remove. Is SlashOption.
+        """
+        guild = highscores_data.get_guild(interaction.guild_id)
+
+        try:
+            for category in guild.get_table(table_name).categories:
+                category.remove_score(user_name)
+            await send_highscore_message(
+                interaction.guild.get_channel(guild.highscore_channel), guild, guild.get_table(table_name)
+            )
+            await interaction.response.send_message(f'User "{user_name}" removed from all categories.', ephemeral=True)
+
+        except nextcord.errors.ApplicationInvokeError:
+            await interaction.response.send_message("Invalid parameter(s).", ephemeral=True)
+
+    @from_category.on_autocomplete("table_name")
+    @from_table.on_autocomplete("table_name")
+    async def autocomplete_table(self, interaction: nextcord.Interaction, table_name: str):
+        """
+        Autocomplete function for table names.
+
+        Args:
+            interaction (nextcord.Interaction): Interaction that invoked the command.
+            table_name (str): String to be autocompleted with Table name.
+        """
+        await interaction.response.send_autocomplete(autofill_tables(interaction.guild_id, table_name))
+
+    @from_category.on_autocomplete("category_name")
+    async def autocomplete_category(self, interaction: nextcord.Interaction, category_name: str, table_name: str):
+        """
+        Autocomplete function for category names.
+
+        Args:
+            interaction (nextcord.Interaction): Interaction that invoked the command.
+            category_name (str): String to be autocompleted with Category name.
+            table_name (str): Table to find Category from.
+        """
+        await interaction.response.send_autocomplete(
+            autofill_categories(interaction.guild_id, table_name, category_name)
+        )
+
+    @from_category.on_autocomplete("user_name")
+    @from_table.on_autocomplete("user_name")
+    async def autocomplete_user(
+        self, interaction: nextcord.Interaction, user_name: str, table_name: str, category_name: Optional[str]
+    ):
+        """
+        Autocomplete functions for user names.
+
+        Args:
+            interaction (nextcord.Interaction): Interaction that invoked the command.
+            user_name (str): String to be autocompleted with User name.
+            table_name (str): Table to find category from.
+            category_name (Optional[str]): Category to find User from, can be None.
+        """
+        await interaction.response.send_autocomplete(
+            autofill_users(interaction.guild_id, table_name, category_name, user_name)
+        )
+
+    @nextcord.slash_command(description="Request a username update. Admins must approve.")
+    async def update_username(
+        self,
+        interaction: nextcord.Interaction,
+        old_username: str = nextcord.SlashOption(description="Username currently stored in highscores.", required=True),
+        new_username: str = nextcord.SlashOption(description="Username to update to.", required=True),
+    ):
+        """
+        Creates a request to send to admins for changing a username. Uses
+        UpdateUsernameVerifyView to do the work.
+
+        Args:
+            interaction (nextcord.Interaction): Interaction that invoked the command
+            old_username (str): Username to replace.
+            new_username (str): Username to replace old with.
+        """
+        guild = highscores_data.get_guild(interaction.guild_id)
+        verify_channel = interaction.guild.get_channel(guild.verification_channel)
+
+        embed: nextcord.Embed = nextcord.Embed(title="Username change request.")
+        embed.add_field(name="Old Username", value=old_username)
+        embed.add_field(name="New Username", value=new_username)
+        await verify_channel.send(
+            content=f"Username change request from <@{interaction.user.id}>.",
+            embed=embed,
+            view=UpdateUsernameVerifyView(),
+        )
+        await interaction.send("Request sent to admins for verification.", ephemeral=True)
diff --git a/cogs/commands/message_management.py b/cogs/commands/message_management.py
new file mode 100644
index 0000000..27b609b
--- /dev/null
+++ b/cogs/commands/message_management.py
@@ -0,0 +1,137 @@
+"""
+Commands for managing/displaying the highscores messages.
+"""
+
+from typing import Optional
+
+import nextcord
+from nextcord.ext import commands
+
+from cogs.submission.submission_views import SubmissionCreateButton  # pylint: disable=import-error
+from highscores import highscores_data  # pylint: disable=import-error
+from utilities.utils import autofill_tables, send_highscore_message  # pylint: disable=import-error
+
+
+class MessageManagementCog(commands.Cog, name="Message Management"):
+    """
+    Class holds commands for managing the messages that display highscores.
+    """
+
+    def __init__(self, bot: commands.Bot) -> None:
+        """
+        Default constructor for MessageManagement class
+
+        Args:
+            bot (commands.Bot): Bot object. Required to register submission button view.
+        """
+        self.bot = bot
+
+    @nextcord.slash_command(
+        description="Clears highscores channel of all table messages. Does not change data.",
+        default_member_permissions=nextcord.Permissions(administrator=True),
+    )
+    async def delete_table_messages(self, interaction: nextcord.Interaction) -> None:
+        """
+        Deletes all table messages from highscores channel. Does not change data.
+        Does not delete highscores channel id.
+
+        Args:
+            interaction (nextcord.Interaction): Interaction that invoked the command
+        """
+        guild = highscores_data.get_guild(interaction.guild_id)
+
+        highscores_channel: nextcord.TextChannel = interaction.guild.get_channel(guild.highscore_channel)
+
+        await interaction.response.defer(ephemeral=True)
+
+        for table in guild.tables:
+            try:
+                table_message: nextcord.Message = await highscores_channel.fetch_message(table.message_id)
+                await table_message.delete()
+            except nextcord.NotFound:
+                # silently ignore that messages are not found. They got deleted already.
+                pass
+
+        await interaction.send("Table messages deleted.", ephemeral=True)
+
+    @nextcord.slash_command(
+        description="Triggers post/update of highscores to registered highscore channel.",
+        default_member_permissions=nextcord.Permissions(administrator=True),
+    )
+    async def post_highscore_tables(self, interaction: nextcord.Interaction) -> None:
+        """
+        A command which posts the highscore in the registered channel.
+        Sends warning if no channel has been registered.
+
+        Either creates new messages for each table if one doesn't exist
+        or edits the existing message.
+
+        Args:
+            interaction (nextcord.Interaction): Interaction that invoked the command.
+        """
+        guild = highscores_data.get_guild(interaction.guild_id)
+        print(f"Printing out highscores information in channel {guild.highscore_channel}")
+        channel = interaction.guild.get_channel(guild.highscore_channel)
+
+        # Error checking for registered highscore channel
+        error_response = "Registered Highscores channel does not exist or was never registered. "
+        error_response += 'Use "/register" to register channels.'
+        assert channel is not None, await interaction.response(error_response, ephemeral=True)
+
+        # Error checking for tables existing
+        # TODO fill out response string once functionality created.
+        error_response = "No tables have been created for this guild. Please create some tables."
+        assert len(highscores_data.get_guild(interaction.guild_id).tables) > 0, await interaction.send(
+            error_response, ephemeral=True
+        )
+
+        # awaiting response because posting scores takes a while
+        await interaction.response.defer(ephemeral=True)
+
+        for table in highscores_data.get_guild(interaction.guild_id).tables:
+            message: nextcord.Message = await send_highscore_message(channel, guild, table)
+            await message.edit(view=SubmissionCreateButton(self.bot))
+
+        # have to save data here in case message id was changed. rather save here after all
+        # messages have been sent.
+        highscores_data.save_guild_data(guild)
+
+        await interaction.send(f"Posted all tables to <#{channel.id}>.", ephemeral=True)
+
+    @nextcord.slash_command(
+        description="Manually refresh a table. Use when changing settings or data manually changed.",
+        default_member_permissions=nextcord.Permissions(administrator=True),
+    )
+    async def refresh_table(
+        self,
+        interaction: nextcord.Interaction,
+        table_name: Optional[str] = nextcord.SlashOption(description="Name of table.", required=True),
+    ) -> None:
+        """
+        Refreshes a table given by user.
+
+        Args:
+            interaction (nextcord.Interaction): Interaction that invoked the command.
+            table (Optional[str]): Table name to refresh. Not optional. Is SlashOption.
+        """
+
+        guild = highscores_data.get_guild(interaction.guild_id)
+        table = guild.get_table(table_name)
+        channel = interaction.guild.get_channel(guild.highscore_channel)
+
+        message: nextcord.Message = await send_highscore_message(channel, guild, table)
+        await message.edit(view=SubmissionCreateButton(self.bot))
+
+        await interaction.response.send_message(f"Updated table {table_name}!", ephemeral=True)
+
+    @refresh_table.on_autocomplete("table_name")
+    async def refresh_table_autofill(self, interaction: nextcord.Interaction, table_name: str):
+        """
+        Collects list of table names and compares to input table name for autocomplete assistance.
+
+        Args:
+            interaction (nextcord.Interaction): Interaction with command.
+            table_name (str): String to run autocomplete compared to.
+        """
+
+        await interaction.response.send_autocomplete(autofill_tables(interaction.guild_id, table_name))
diff --git a/cogs/register/__init__.py b/cogs/commands/settings_management.py
similarity index 54%
rename from cogs/register/__init__.py
rename to cogs/commands/settings_management.py
index 40ee7c8..22f251c 100644
--- a/cogs/register/__init__.py
+++ b/cogs/commands/settings_management.py
@@ -1,26 +1,27 @@
 """
-Bot command for registering various channels to the bot.
+Commands for managing the Guild's settings.
 """
 
+from typing import Optional
 
-from nextcord.ext import commands
 import nextcord
+from nextcord.ext import commands
 
 from highscores import highscores_data  # pylint: disable=import-error
 
 
-class Register(commands.Cog, name="Register"):
+class SettingsManagementCog(commands.Cog, name="Settings Management"):
     """
-    Class holds various register commands.
+    Class holds commands for managing Guild's settings.
     """
 
     def __init__(self) -> None:
         """
-        Default constructor for Register class. Does nothing.
+        Default constructor for SettingsManagement class. Does nothing.
         """
 
     @nextcord.slash_command(default_member_permissions=nextcord.Permissions(administrator=True))
-    async def register(self):
+    async def register(self, interaction: nextcord.Interaction):
         """
         Parent slash command, never called.
         """
@@ -29,7 +30,7 @@ class Register(commands.Cog, name="Register"):
     async def highscore(
         self,
         interaction: nextcord.Interaction,
-        channel: nextcord.abc.GuildChannel = nextcord.SlashOption(
+        channel: Optional[nextcord.abc.GuildChannel] = nextcord.SlashOption(
             description="Channel to register",
             required=False,
             channel_types=[nextcord.ChannelType.text],
@@ -56,7 +57,7 @@ class Register(commands.Cog, name="Register"):
     async def submission(
         self,
         interaction: nextcord.Interaction,
-        channel: nextcord.abc.GuildChannel = nextcord.SlashOption(
+        channel: Optional[nextcord.abc.GuildChannel] = nextcord.SlashOption(
             description="Channel to register",
             required=False,
             channel_types=[nextcord.ChannelType.text],
@@ -68,7 +69,7 @@ class Register(commands.Cog, name="Register"):
 
         Args:
             interaction (nextcord.Interaction): Interaction that invoked the command
-            channel (nextcord.abc.GuildChannel, optional): Channel to register
+            channel Optional[nextcord.abc.GuildChannel], optional): Channel to register
                 Is a SlashOption. Limited to text channels, Defaults to None.
         """
         if not channel:
@@ -83,7 +84,7 @@ class Register(commands.Cog, name="Register"):
     async def verify(
         self,
         interaction: nextcord.Interaction,
-        channel: nextcord.abc.GuildChannel = nextcord.SlashOption(
+        channel: Optional[nextcord.abc.GuildChannel] = nextcord.SlashOption(
             description="Channel to register",
             required=False,
             channel_types=[nextcord.ChannelType.text],
@@ -95,7 +96,7 @@ class Register(commands.Cog, name="Register"):
 
         Args:
             interaction (nextcord.Interaction): Interaction that invoked the command
-            channel (nextcord.abc.GuildChannel, optional): Channel to register
+            channel (Optional[nextcord.abc.GuildChannel], optional): Channel to register
                 Is a SlashOption. Limited to text channels, Defaults to None.
         """
         if not channel:
@@ -106,9 +107,53 @@ class Register(commands.Cog, name="Register"):
         guild.verification_channel = channel_id
         highscores_data.save_guild_data(guild)
 
+    @nextcord.slash_command(default_member_permissions=nextcord.Permissions(administrator=True))
+    async def set(self, interaction: nextcord.Interaction):
+        """
+        Parent slash command for setting settings. Never called.
+        """
 
-# This function will be called when this extension is loaded.
-# It is necessary to add these functions to the bot.
-def setup(bot: commands.Bot) -> None:
-    """Adds function to bot"""
-    bot.add_cog(Register())
+    @set.subcommand(
+        description="Set character length for a category. Can cut off username/score. Affects all categories."
+    )
+    async def category_pad_length(
+        self,
+        interaction: nextcord.Interaction,
+        length: Optional[int] = nextcord.SlashOption(
+            description="Number of characters.", required=True, default=26
+        ),
+    ) -> None:
+        """
+        Changes guild's category pad length.
+
+        Args:
+            interaction (nextcord.Interaction): Interaction that invoked the command
+            length (Optional[int]): Number of characters. Is SlashOption. Defaults to 26.
+        """
+
+        guild = highscores_data.get_guild(interaction.guild_id)
+        guild.category_pad_length = length
+        highscores_data.save_guild_data(guild)
+        await interaction.response.send_message(
+            f"Category pad length set to {length}", ephemeral=True
+        )
+
+    @set.subcommand(description="Set username length. Limits all submissions to this length.")
+    async def username_length(
+        self,
+        interaction: nextcord.Interaction,
+        length: Optional[int] = nextcord.SlashOption(
+            description="Number of characters.", required=True, default=12
+        ),
+    ) -> None:
+        """
+        Changes guild's username length limit.
+
+        Args:
+            interaction (nextcord.Interaction): Interaction that invoked the command
+            length (Optional[int]): Number of charactesr. Is SlashOption. Defaults to 12.
+        """
+        guild = highscores_data.get_guild(interaction.guild_id)
+        guild.username_length = length
+        highscores_data.save_guild_data(guild)
+        await interaction.response.send_message(f"Username length set to {length}", ephemeral=True)
diff --git a/cogs/commands/views/update_username_verify.py b/cogs/commands/views/update_username_verify.py
new file mode 100644
index 0000000..4695865
--- /dev/null
+++ b/cogs/commands/views/update_username_verify.py
@@ -0,0 +1,82 @@
+"""View for allowing a username update."""
+
+import nextcord
+
+from highscores import highscores_data  # pylint: disable=import-error
+from utilities.utils import send_highscore_message  # pylint: disable=import-error
+
+
+class UpdateUsernameVerifyView(nextcord.ui.View):
+    """Defines view for allowing a username update."""
+
+    def __init__(self):
+        """
+        Default constructor for UpdateUsernameVerifyView. Calls super constructor with no timeout.
+        """
+        super().__init__(timeout=None)
+
+    @nextcord.ui.button(
+        label="Deny", style=nextcord.ButtonStyle.red, custom_id="deny-username-update"
+    )
+    async def deny_button(
+        self, button: nextcord.ui.Button, interaction: nextcord.Interaction
+    ):  # pylint: disable=unused-argument
+        """
+        Button for denying username update. Deletes message.
+
+        Args:
+            button (nextcord.ui.Button): unused
+            interaction (nextcord.Interaction): Interaction with the button
+        """
+        await interaction.message.delete()
+
+    @nextcord.ui.button(
+        label="Approve", style=nextcord.ButtonStyle.green, custom_id="approve-username-update"
+    )
+    async def approve_button(
+        self, button: nextcord.ui.Button, interaction: nextcord.Interaction
+    ):  # pylint: disable=unused-argument
+        """
+        Button for approving username update. Tells guild data to update username, then updates
+        message to show it is complete.
+
+        Args:
+            button (nextcord.ui.Button): unused
+            interaction (nextcord.Interaction): Interaction with the button
+        """
+        embed_content = interaction.message.embeds[0].to_dict()
+        old_username: str = embed_content["fields"][0]["value"]
+        new_username: str = embed_content["fields"][1]["value"]
+
+        guild = highscores_data.get_guild(interaction.guild_id)
+
+        content = interaction.message.content
+        content += f"\nApproved by <@{interaction.user.id}>."
+        await interaction.edit(content=content, view=None)
+
+        user_was_found: bool = False
+
+        # update username in all tables and categories
+        for table in guild.tables:
+            table_updated: bool = False
+            for category in table.categories:
+                score = category.remove_score(old_username)
+                if score:
+                    # score exists
+                    score.user = new_username
+                    category.add_score(score)
+                    table_updated = True
+                    user_was_found = True
+
+            if table_updated:
+                await send_highscore_message(
+                    interaction.guild.get_channel(guild.highscore_channel), guild, table
+                )
+
+        if not user_was_found:
+            await interaction.send(
+                f'User "{old_username}" was not found. Inform user to correct username.',
+                ephemeral=True,
+            )
+        else:
+            highscores_data.save_guild_data(guild)
diff --git a/cogs/delete_scores/__init__.py b/cogs/delete_scores/__init__.py
deleted file mode 100644
index 9c417b5..0000000
--- a/cogs/delete_scores/__init__.py
+++ /dev/null
@@ -1,51 +0,0 @@
-"""
-Bot command for deleting the guild's scores.
-"""
-
-from nextcord.ext import commands
-import nextcord
-
-from highscores import highscores_data  # pylint: disable=import-error
-
-
-class DeleteScores(commands.Cog, name="Delete Scores"):
-    """
-    Warning: This command only works for developers.
-    Deletes this guild's scores.
-    """
-
-    def __init__(self):
-        """
-        Default constructor for DeleteScores class. Does nothing.
-        """
-
-    @nextcord.slash_command(
-        description="Deletes all scores for this guild. Used for testing.",
-        default_member_permissions=nextcord.Permissions(administrator=True),
-    )
-    async def delete_scores(self, interaction: nextcord.Interaction):
-        """
-        A command which deletes all scores in all tables for this guild.
-        Command limits to admins to prevent devs from usings on non-test servers.
-        """
-        # only allow AlwaysCompiling to use.
-        # If you are a developer and want to use command, can add name to list
-        if interaction.user.id == 206602713511886849:
-            for table in highscores_data.get_guild(interaction.guild_id).tables:
-                for category in table.categories:
-                    category.clear()
-            highscores_data.save_guild_data(highscores_data.get_guild(interaction.guild_id))
-            await interaction.response.send_message(
-                f"Cleared score data for {interaction.guild.name}.", ephemeral=True
-            )
-        else:
-            await interaction.response.send_message(
-                "You shouldn't be using this message.", ephemeral=True
-            )
-
-
-# This function will be called when this extension is loaded.
-# It is necessary to add these functions to the bot.
-def setup(bot: commands.Bot):
-    """Adds function to bot"""
-    bot.add_cog(DeleteScores())
diff --git a/cogs/post_highscores/__init__.py b/cogs/post_highscores/__init__.py
deleted file mode 100644
index b6b39bd..0000000
--- a/cogs/post_highscores/__init__.py
+++ /dev/null
@@ -1,68 +0,0 @@
-"""
-Bot command to post the highscores
-"""
-
-from nextcord.ext import commands
-import nextcord
-
-from cogs.submission.submission_views import SubmissionCreateButton  # pylint: disable=import-error
-from highscores import highscores_data  # pylint: disable=import-error
-from utilities.utils import send_highscore_message  # pylint: disable=import-error
-
-
-class PostHighscores(commands.Cog, name="Post Highscores"):
-    """Posts Highscores."""
-
-    def __init__(self, bot: commands.Bot) -> None:
-        """
-        Default constructor for PostHighscores class
-
-        Args:
-            bot (commands.Bot): Bot object. Required to register submission button view.
-        """
-        self.bot = bot
-
-    @nextcord.slash_command(
-        description="Triggers post/update of highscores to registered highscore channel.",
-        default_member_permissions=nextcord.Permissions(administrator=True),
-    )
-    async def post_highscore_tables(self, interaction: nextcord.Interaction) -> None:
-        """
-        A command which posts the highscore in the registered channel.
-        Sends warning if no channel has been registered.
-        """
-        guild = highscores_data.get_guild(interaction.guild_id)
-        print(f"Printing out highscores information in channel {guild.highscore_channel}")
-        channel = interaction.guild.get_channel(guild.highscore_channel)
-
-        # Error checking for registered highscore channel
-        error_response = "Registered Highscores channel does not exist or was never registered. "
-        error_response += 'Use "/register" to register channels.'
-        assert channel is not None, await interaction.response(error_response, ephemeral=True)
-
-        # Error checking for tables existing
-        # TODO fill out response string once functionality created.
-        error_response = "No tables have been created for this guild. Please create some tables."
-        assert (
-            len(highscores_data.get_guild(interaction.guild_id).tables) > 0
-        ), await interaction.response(error_response, ephemeral=True)
-
-        # awaiting response because posting scores takes a while
-        await interaction.response.defer(ephemeral=True)
-
-        for table in highscores_data.get_guild(interaction.guild_id).tables:
-            message: nextcord.Message = await send_highscore_message(channel, guild, table)
-            await message.edit(view=SubmissionCreateButton(self.bot))
-
-        # have to save data here in case message id was changed. rather save here after all
-        # messages have been sent.
-        highscores_data.save_guild_data(guild)
-
-        await interaction.followup.send(f"Posted all tables to <#{channel.id}>.", ephemeral=True)
-
-
-# This function will be called when this extension is loaded.
-# It is necessary to add these functions to the bot.
-def setup(bot: commands.Bot):
-    """Adds function to bot"""
-    bot.add_cog(PostHighscores(bot))
diff --git a/cogs/submission/submission_views.py b/cogs/submission/submission_views.py
index 35a4989..2398393 100644
--- a/cogs/submission/submission_views.py
+++ b/cogs/submission/submission_views.py
@@ -126,7 +126,7 @@ class SubmitButton(nextcord.ui.Button):
             files=[await attch.to_file() for attch in interaction.message.attachments],
             view=VerificationView(),
             embed=embed,
-            content=f"Submission from {interaction.user.display_name}",
+            content=f"Submission from <@{interaction.user.id}>.",
         )
         await interaction.message.edit(content=f"<@{interaction.user.id}> Submitted!", view=None)
         submission_objects.remove_user_submission(interaction.user.id)
diff --git a/cogs/submission/verification_view.py b/cogs/submission/verification_view.py
index 3568706..c073490 100644
--- a/cogs/submission/verification_view.py
+++ b/cogs/submission/verification_view.py
@@ -59,7 +59,9 @@ class VerificationView(nextcord.ui.View):
                 submission_category,
                 submission_score,
             )
-            await interaction.message.edit(f"Approved by <@{interaction.user.id}>.", view=None)
+            content = interaction.message.content
+            content += f"\nApproved by <@{interaction.user.id}>."
+            await interaction.message.edit(content=content, view=None)
         except UnboundLocalError:
             await interaction.send("Instruct user to submit with all fields.")
             await interaction.message.edit(view=None)
diff --git a/requirements.txt b/requirements.txt
index 95e4c61..412a87a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
-nextcord>=2.1.0
-python-dotenv>=0.20.0
\ No newline at end of file
+nextcord>=2.3.2
+python-dotenv>=0.20.0
diff --git a/utilities/utils.py b/utilities/utils.py
index fae5544..5be80b8 100644
--- a/utilities/utils.py
+++ b/utilities/utils.py
@@ -3,11 +3,134 @@ Contains various utlity functions for highscores bot
 """
 
 import nextcord
-from highscores import highscores_data, highscores_message_map  # pylint: disable=import-error
-from classes.score import Score  # pylint: disable=import-error
-from classes.guild import Guild  # pylint: disable=import-error
+
 from classes.category import Category  # pylint: disable=import-error
+from classes.guild import Guild  # pylint: disable=import-error
+from classes.score import Score  # pylint: disable=import-error
 from classes.table import Table  # pylint: disable=import-error
+from highscores import highscores_data, highscores_message_map  # pylint: disable=import-error
+
+
+def autofill_categories(guild_id: int, table_name: str, category_begin: str) -> "list[str]":
+    """
+    Returns all category names that start with category_begin.
+    If category_begin is empty, returns list of all category names.
+
+    Args:
+        guild_id (int): Guild id that holds the table and categories.
+        table_name (str): Table name to search in.
+        category_begin (str): The beginning of a category name to search with. Can be empty.
+
+    Returns:
+        list[str]: List of all category names that start with category_begin.
+    """
+
+    categories_list = highscores_data.get_guild(guild_id).get_table(table_name).get_categories().keys()
+
+    # if string empty, return all category names
+    if not category_begin:
+        return categories_list
+
+    # else find all categories that start with category_begin
+    categories = [category for category in categories_list if category.lower().startswith(category_begin.lower())]
+    return categories
+
+
+def autofill_category_users(guild_id: int, table_name: str, category_name: str, user_begin: str) -> "list[str]":
+    """
+    Returns list of users that are in the table and category that also start with the user_begin string.
+
+    Args:
+        guild_id (int): Guild id corresponding to table and category.
+        table_name (str): Table to look in for category.
+        category_name (str): Category to look in for users.
+        user_begin (str): Beginning of user name to search with. Can be empty.
+
+    Returns:
+        list[str]: List of users that start with user_begin.
+    """
+
+    try:
+        users_list: "list[str]" = (
+            highscores_data.get_guild(guild_id).get_table(table_name).get_category(category_name).get_users()
+        )
+
+        # if string empty, return all users
+        if not user_begin:
+            return users_list
+
+        # else find all users that start with user_begin
+        users = [user for user in users_list if user.lower().startswith(user_begin.lower())]
+
+        return users
+
+    except AttributeError:
+        return []
+
+
+def autofill_tables(guild_id: int, table_begin: str) -> "list[str]":
+    """
+    Returns all table names that start with table_begin. If table_begin is empty, returns list of all table names.
+
+    Args:
+        guild_id (int): Guild id that holds the tables.
+        table_begin (str): The beginning of a table name to search with. Can be empty.
+
+    Returns:
+        list[str]: List of table names that start with table_begin.
+    """
+
+    tables_list = highscores_data.get_guild(guild_id).get_tables().keys()
+
+    # if string empty, return all table names
+    if not table_begin:
+        return tables_list
+
+    # else find all tables that start with table_begin
+    tables = [table for table in tables_list if table.lower().startswith(table_begin.lower())]
+    return tables
+
+
+def autofill_users(guild_id: int, table_name: str, category_name: str, user_begin: str) -> "list[str]":
+    """
+    Returns list of users that match user_begin. Either all users in table or just users in category if category is
+    None. Might be sexpensive due to unioning all users in table.
+
+    Args:
+        guild_id (int): Guild id corresponding to table and category.
+        table_name (str): Table to look in for category.
+        category_name (str): Category to look in for users. Can be None if not looking for category.
+        user_begin (str): Beginning of user name to search with. Can be empty.
+
+    Returns:
+        list[str]: List of users that start with user_begin.
+    """
+
+    try:
+        # If no category name, get all users in table.
+        if category_name is None:
+            user_set: set = set()
+
+            for category in highscores_data.get_guild(guild_id).get_table(table_name).get_categories().values():
+                user_set = user_set | set(category.get_users())
+
+            users_list = list(user_set)
+        else:
+            users_list: "list[str]" = (
+                highscores_data.get_guild(guild_id).get_table(table_name).get_category(category_name).get_users()
+            )
+
+        # if string empty, return all users
+        if not user_begin:
+            return users_list
+
+        # else find all users that start with user_begin
+        users = [user for user in users_list if user.lower().startswith(user_begin.lower())]
+
+        return users
+
+    except AttributeError:
+        return []
 
 
 def format_highscore_message(guild: Guild, table: Table) -> str:
@@ -27,7 +150,7 @@ def format_highscore_message(guild: Guild, table: Table) -> str:
 
     # Gather all categories and add to string
     for category in table.categories:
-        ret_string += f"{category.name}".ljust(26, " ")
+        ret_string += f"{category.name}".ljust(guild.category_pad_length, " ")
     ret_string += "\n"
 
     # list rankings in a single line. Start with first place for each category and then continue
@@ -49,17 +172,15 @@ def format_highscore_message(guild: Guild, table: Table) -> str:
                 else:
                     score = score.rjust(7, " ")
 
-                ret_string += f"{i+1}: {username} - {score}".ljust(26, " ")
+                ret_string += f"{i+1}: {username} - {score}".ljust(guild.category_pad_length, " ")
             else:
-                ret_string += f"{i+1}: submit your score".ljust(26, " ")
+                ret_string += f"{i+1}:".ljust(guild.category_pad_length, " ")
         ret_string += "\n"
 
     return ret_string + "```"
 
 
-async def send_highscore_message(
-    channel: nextcord.TextChannel, guild: Guild, table: Table
-) -> nextcord.Message:
+async def send_highscore_message(channel: nextcord.TextChannel, guild: Guild, table: Table) -> nextcord.Message:
     """
     Function takes care of checking if a message exists for a table.
     Creates and sends/edits the message.