yes, but it's a bit complicated
i used to own the Audya 4,
and used an AKAI controller
my pads would trigger the fills, change Arr A, B, C, D, intro ends, etc (with the help of software on my PC, midi translator, very very complicated stuff,
noone in the world had this setup using Audya :-)
you will need to download the sysex codes, which is not on a Ketron website
i had uploaded this once onto box