Sampler Question

So I've been looking at a few MIDI controllers for the mixvibes sampler and have a few questions:
a few of the control surfaces have velocity sensitive pads, does mixvibes sampler support this? meaning will I be able to notice the difference in hitting the pad faster or slower?
also i saw a korg nanopad with a roll and flam feature. Are these features supported by the mixvibes sampler?
if so is it possible to get a realistic roll say similar to a Roland R8 drum machine or one of the newer Boss dr670 machines?
which sampler control surfaces are already mapped in mixvibes that work well?
(I don't have the software in front of me to check)
a few of the control surfaces have velocity sensitive pads, does mixvibes sampler support this? meaning will I be able to notice the difference in hitting the pad faster or slower?
also i saw a korg nanopad with a roll and flam feature. Are these features supported by the mixvibes sampler?
if so is it possible to get a realistic roll say similar to a Roland R8 drum machine or one of the newer Boss dr670 machines?
which sampler control surfaces are already mapped in mixvibes that work well?
(I don't have the software in front of me to check)