Yes Susan but think of it this way Sonar is not the sequencer here.
Oh, okay, I see. Sorry I misread the OP!
In the past, I've usually taken the easy way out that the Motif provides and just saved the MIDI sequence to a memory card and imported that into SONAR.
However, I've also done it the hard way, and synced SONAR and the Motif and recorded it that way. It's not pretty, but it definitely can be done, depending on the sync options available.
-Susan