Thanks for the scan Joe.

The Navigator manual lists the Cyclone ID as 01 in the MIDI spec so I hacked the following together and was able to change the Rhythm via the following:

F0 10 08 01 06 00 00 F7 - Rhythm: rC

F0 10 08 01 06 00 01 F7 - Rhythm: PU

F0 10 08 01 06 00 02 F7 - Rhythm: LS

F0 10 08 01 06 00 03 F7 - Rhythm: LP

However, I could not figure out a message for any other param.  I am also running Cyclone V1 as it is the only version that can be loaded onto my unit.