Cubender - thanks very much for the very helpful suggestion, which works great. I should have studied the Manual more carefully!
JMCecil - thanks also for the suggestion; yes, the MOXF does support MMC and I was able to get the Transport control to work, although it is a little tricky to control because the MOXF forces you to be in a “DAW Remote” mode to do so. The best solution for this (for me at least) is using a separate midi controller (I"m using the Launchkey MINI) and then playing the MOXF as normal.
Thanks again to both of you for some excellent advice. I really appreciate the responses.
David