Round Robin AND velocity layers at same time?

Hi, If creating my own kit from real drums I would for a specific pad/sound:

1: sample a couple of hits for a few different velocity levels.
2: Program the pad so every velocity layer/level can cycle through its corresponding samples in a round robin fashion.

I can only select EITHER round robin OR velocity mode when editing in GA.

When loading Acoustic Agent I notice that it is sampled in the desired fashion with RR for each velocity.

How do I do that for my own custom recorded kits?

THANKS

Claes