Deleting and editing posts, finding appropriate tags and editing them in?

Just posted this:

https://forums.eagle.ru/showthread.php?t=232924

I wanted this in the Thrustmaster folder. Don't know why it didn't end up there. How to make it show in the Thrustmaster folder instead of the generic Input/Output folder?

I wanted to add in suitable tags. Can tags be edited in?

I wanted delete thread, reenter it with appropriate tags.Can thread be deleted?

I very much appreciate the usefulness of tags. Where can i find lists of suggestions for appropriate tags? Every person just making them up isn't a good idea obviously.