[filosofem]

It's been years since using Xpand! but if memory serves me, Xpand! did have drum roll articulations, so there would be no reason to omit them in future revisions. Also Xpand! like all Virtual Instruments automatically synchronize to the Timeline Meter. Akai Professional which manufactures those MIDI Controllers also owns AIR Music Technology which develop third party Virtual Instruments for host DAWs like Pro Tools, so Xpand! 2 and MPK should work straight out of the box. There are compatibility documentation lying around here somewhere but that's beyond me these days as so much has changed.