Im not sure if I understand that. My Tyros sends and recieves PC changes to Sonar via MIDI and vice versa on separate channels. I can use the Tyros as a Master Keyboard sending PC and controller information VIA MIDI and the Internal clock, then set the clock on the receiving sequencer to receive. Then transmit back. The Motif should recognize any MIDI input and MIDI commands. I think it would be more difficult to use the Motif as the Master keyboard as the Tyros has specific style patches on specific Channels.

Any sequencer whether computer or another workstation should work the same way.

You can send MIDI using MIDI A and receive on MIDI B as well.
Plus you can design you own MIDI implementation template,

I have been able to send and receive ALL style and Part information back and forth to a sequencer with the exception of Multi Pads. All EFX and Art voices intact.