Script request: Scale parameters

God day,

I could certainly use a script that would let me scale parameters, that is, exactly as what is achieved by the eminent scripts of @dcuny and iviachupichu, but not restricted to pitch deviation. The ideal script, I recon, would be one, where you can select the parameter from a drop-down menu. Also, a finer scale—in increments/decrements of, say, 5 %—would be preferred.

Best regards