This used to be standard in Logic. It was dropped some time ago. Why? What was the point in crippling this excellent capability? You can lock an external clock to Logic still, but you can no longer lock Logic's midi clock to an external clock. Apple seems oblivious to the needs of musicians who use external MIDI gear. No sync to external MIDI clock. No access to external MIDI patch names (which is why you have to hand-build environments with the bank and patch names or use the last [beta if you are on Intel CPU] incarnation of SoundDiver [hang on to our Logic 7 keys everybody!]). Virtual MIDI instrument can't save bank or program numbers. It just gets worse with time.