Not sure what you mean by that… can you explain?[/quote]
Make the “Mod Source” for the MOD of your choice, Osc 2 Pitch.
Now the pitch of that osc can modulate other parameters.
EG: the rate of an LFO that is controlling the pitch of Osc 1.
Not infront of my S37 right now and i’m hardly a synth guru, but I hope this helps…