Kamikaze
Have you made use of the dynamics tool (transfrom). You can drag the midi track into the Transform players title bar (It's a bit of a secret, even XLNs tech guy didn't now). Then alter just the velocities of the high hats, or the accents of the sixteenths.
 
I'm partly asking, because i'm interested in how AD2 handles EZ drum map when you do this. BUt also because it's a cool feature of AD2, that's not knwon abaout. The one video I recently saw, had the demonstrator drop into a midi folder, but you can just drag it straight into the player's title bar.
 
 

Kamikaze
Yeah, the saving is a bit a mess, but you can drag it back out to the track, and it keeps the edits. It's easier to ee when the original midi has equal velocities, and is dragged in and transormed, and dragged back out.
 
Also you can mute the drum type in transform.  Makes an easy way to mute every but the hats, drg them out to a track, then mute the hats and unmute the snares and drag them out to anoth track. Easy way to split the midi by instrument type.