In Steam friends, you can organize your friends by "tagging" them (in your friends list, right click someone and select "Tag as"). It's convenient since it allows you to organize your contacts following the games you play together, the moment of the day when they are available, whatever.
But once you have created a tag an assigned it to some of your friends, is it possible to
- modify the tag (rename it) ?
- delete the tag (and, hence, untag all the tagged friends) ?
Best Answer
So far, it sounds like it's a missing feature.
It's not possible to modify a tag, and the only way to delete it is to untag everyone.