you can sync to the code on a clip - its a different playmode - but I dont understand why you would need to if you have external timecode....

am I missing something?

to sync a clip on catalyst to external timecode - select the sync to SMPTE L and dial in the sync point (in frames) using inframe

If triggering from the console - theres no guarantee that the clips will stay exactly in sync - you could also use Sync ID to do this...

S