@ kiwi
This is a solution. It would be Great !
I really think the developpers should think about it because a lot of people certainly need this feature.
I've heard that they don't want to cause the system to have tags that diviate from standard tags.
I've played around with this for genres. Initially, I wanted to change the genre tag to be a list. This caused a bit of havoc when importing into my iPod, but realized that this would cause issues with the iPod because it would create a different genre for every different genre combination that the music had, so instead I moved to having a "main genre" tag and "subgenre" tag. I then went through and clean out the regular genre category. This has improved things dramatically because now my iPod has a much cleaner set of genre tags, and in MC, I have a very powerful way of characterizing my music.
Maybe the best thing to do would be to have a set of mini-tutorials/FAQ. I'd love to see a sticky thread that had a limited set of tips & tricks for people. It shouldn't be an open thread, whether things should be in it can be discussed in other threads and then included. Or it could be on a web site. (Is there already a source for MC tips or tricks? This forum is great, but it's easy to effectively loose a cool tip/trick by not remembering the thread that it was in.)
kiwi