Imagine two tag groups. One for vacations and one for yearly seasons. I'd like to set the 'vacation' tag group to automatically tag picture that I tag with elements of that group. So if I tag a picture with the tag 'skiing_vacation', I'd like the tag 'vacation' to be automatically applied to that picture as well. However, if I tag a picture with the 'winter' tag, I don't want the group-tag 'yearly_seasons' to be automatically applied to the picture, as I only use the group-tag 'yearly_seasons' as a way to organize my tags. So I'd like to be able to set an option for each tag group to decide that if I tag a picture with a tag in that group, that that group tag also applies to that picture.