Make a way for bot creators to add a premium (or other) tag to certain commands

Something that frustrates me at this moment is that slash commands are very powerfull and usefull but some bots lock features behind some payment. This is fine as far as i am concerned but there is no way for me to see if a command is a payed feature or not untill i try using it. If some kind of label could be shown (or if the commands could be sectioned or some other way to differentiate between all the commands for one bot) then it could be shown which commands are only available for premium users or if you have voted for the bot. Even before i have tried to use them.