Restrict usage of bot's commands to channel categories

Currently, when changing the permissions of a bot's command (or the bot globaly), you can only change the permissions based on role, user and channel. You can't directly choose a channel category, you'll have to add every channel of that category individually to the overrides. This only works when you have static channels in that category (you don't create/delete channels), but what if was a dynamic category (like support tickets)? 

Currently there is no way to do that, so that's why I made this feature request, to be able to make channel categories overrides to the commands permissions of a bot. (I'm speaking about slash commands, not prefixed commands)