Open the patch where you want to neutralize the pitch bend controller.
Add a modulation in the Mod Matrix:
Pitch Bend > Pitch. Set the Amount of this modulation to -70.60%. In order to get to this value, you will have to push the encoder for this value down to switch to Fine editing mode.
Now, you can turn the pitch bend wheel and the pitch will not change.
If the patch is set to a PB Range different than the default +12, you may either adjust the modulation value in the Mod Matrix or the PB range on the Osc1/2/3>Control tab.
When you’re done, save the patch to keep the changes.
This procedure has to be made in every patch where you want to apply this control.