No sound (sort of) from XPand!2

[mophilly]

I am trying to setup a track to use Expand!2 drum loops. I am missing a key element or two on the setup.

I have been able to set up an instrument track for a guitar then create bass guitar track via the "Copy audio as midi" feature. That worked only when the keyboard as the midi controller was hooked up and the track enabled.

This time i would like set up a drum loop that just plays. I have an instrument track, insert A is Expand!2, with a drum loop selected. Track enabled and ... nothing.

I would be very grateful for a link to an article that explains to a clueless newbie how to set this up.

Especially nice if I can add the drum loops without having the keyboard turned on. That is, an "on board" midi controller, I guess.