Groove Agent 4: how to change the snare sound?

Virtual instruments Groove Agent
1

In Groove Agent 4, I want to change the snare related sound to that in another kit? May I know how to do it?

2

I think you can find all sounds of the kits as separate files via MediaBay in the VST conten folders. Then just drag and drop should do the job.

3

I assume it’s only possible if the kit is “beat agent”. Not possible in “acoustic agent” kits.

4

Why are samples not replaceable in Acoustic agent.

The way they have these agents makes it hard for me to wrap my head around.

I need to go through the manual methodically and watch tutorials.