Live Sampling Groove Agent question


I got a question regarding live sampling in groove agent 5 full version.

I want to use it like a classic sampler like a MPC.
The way i found is defining the incoming audio (Phono or Player via Audio Interface) as a sidechain source and then sidechain it.
Then record it in the recorder, setting are auto next and midi note on and that way i define the pads.
Is that the correct way to do it or is there a simpler way?