SY77 - Using the internal sequencer as modulation source 

In this video i show how to use tthe innternal sequencer as motion recorder for system exclusive edits. In this case Volume of OP3 and OP4.
This also works for MIDI CC. CC and Sysex have to be switched on as receive events in the pattern setup menu.
And of course you can do much longer and complex things too. Just don’t overload the midi buffer 😄