It would be beneficial for the FX "controller" section in the 500X to add a footswitch parameter to allow the control of the speed function when using the rotary drum and horn (Leslie).
So far the programming allows Exp 1, Exp 2, Variax volume, Variax tone or off. I have gotten the pedal to control speed from parameter zero to 100, (using exp 1 or 2 reserved for the pedal) allowing a varying speed for the Leslie effect.
To be clear, I am requesting the addition of selecting a footswitch (in addition to the exp 1 and 2, Variax tone or volume or off) to select the drum/horn speed from slow to fast. I have also heard that plugging in an external Expression pedal may do this. As would an on off switch plugged in to the external expression switch on the rear. I do not wish to add another external item, or I would use outboard volume and a Cry Baby pedal to free up the internal exp 1 and 2.
Thank you