Try including layered drum hits in the chain as a work around for this. That is, have some slices containing both kick + snare, kick + hat, snare + hat, etc etc.

A quick way to make a chain like this is to write a couple of bars of drums on multiple tracks, bounce down, slice the composite sample and then clear the part and use that on one track.

With some experimentation and careful Slice P-Locking, you can make 1 Track’s chain sound like 4 or 5 drum tracks.