+1 - I have commented elsewhere about the need for additional styles in the same song to show up in the mixer (both in Medley Maker or with Style-Change in Bar Settings).

HOWEVER - I would not like keeping them on the same track in the mixer and just changing the name when they are playing. I'm not sure how this could be done anyway, but that would defeat the purpose of being able to find alternate or subs for a particular player, and drag and drop would have both instruments in the same track, which is not good either.

The best solution is that when there is an additional style in Medley Maker or a Style Change in a bar, the program automatically prints new tracks in the utilities and names them accordingly, and - most importantly - mutes all tracks from both styles from playing the chord chart when the other is playing. Now that there are plenty of available tracks and all-tracks-equal implemented this should be possible.