RB 3.0.1 Q:How to organize playlist on USB by selection (KEY/BPM/etc)

Hi!

How to organize playlists on USB by key, genre, stars or some another selection?

I like to organize my playlists before i'll play my gig.

Usually for 1 hour set i use some 40-50 tracks (i don't mean that i'll play each of them).

But anyway when i open my playlist at players (850/900/2000) there is everything sorted already by track name.

I would like to use KEY or some another sorting (in playlist, not for all stuff in USB stick!).

Is there some way how to organize stuff in playlist?