Hello all:
I was researching this very topic, and ran across this blog post:
Arturia Beatstep Pro and Nord Drum 2This looks like a 98% solution to getting the Arturia Beatstep Pro and Nord Drum 2 to work together when connecting the Beatstep's drum gate to the ND2's trigger.
No other gear (envelope generators, gate-to-trigger, etc.) is required to get this to work.
This blog post essentially echos what user
bemushroomed is saying.
Please try this out, and see what results you get.
-Ken