Drum Map and MIDI CC data

Hi any idea how I can get CC data (modwheel) to work whilst using a Drum Map? I’m using samples that require mod wheel data to open and tighten the hihats but it only works when I switch it to No drum map. Id like to be able to see the automation lane beneath the drum hits as I program. any ideas?
thanks
p

Is the note that operates the hi hat the same in the drum map as no map?

Seems like a VSTi should respond the same with or without a drum map.

I was thinking that a drum map is just a bunch of note routing, maybe it does some CC routing.

Maybe read up on what they do exactly.