Hi Scott...in the PA2XPRO's (PA800 as well)style play mode you can do what you want.

Page 101 in the manual has a feature to change each DRUM FAMILY volume in relation to what is recorded in the original style.

8 familys are listed, kick,snare,tom,hi hat,cymbal,perc1,perc2,EFX

So you can bring up a style...change any/all drum groups to be the way you want...play..OR of course you could save this as a perfornance and have it the way you want when you call up that perfomace.
It effects this style onlty and is not global to all styles.

You DO NOT have to go into each occurance. This adj the drum group for the whole style.

Hope this helps.

Lee S.