Try these settings
Osc BankRange Osc3=Low/Mono
Fine Osc3=right mouse click and set the coarse tune to 16 semi-tone.
if its too fast back down semi-tone to the speed you want.
Osc 3 Control=On (down)
Oscillator Modulation=On (right)
ControllersMod Mix=0 (Osc3)
MixerOsc3=Off (left)
I hope this will get you started
George Ware