Any way to toggle what your external exp pedal is using with a footswitch?

[MyNameIsHagan]

So, this may be too much to want. 

I upgraded from the Helix LT to a Rack with the foot controller recently. When I had the LT, i had the built in exp pedal set to a pitch shifter and an external exp pedal set to volume controller. It was great.

Well the Helix Foot Controller doesn't have a built in exp pedal (which is absolutely ridiculous since the floor board and LT do, but whatever.) So I'm just using my external pedal for the pitch shifter currently. 

Wondering if there's any possible way to have a foot switch toggle what the external pedal is using. Like click a switch and it overwrites what the default for the pedal is and clicking it again will revert back. 

I've tried messing around and couldn't ever get anything to work so in bot sure if something like that is even possible. 

I don't really NEED the volume control, so what I'm doing is fine. But it is pretty handy having it and I don't want to buy another external pedal just for the convenience of it. 

Thanks anyways

[Peter]

You can set the pedal to a pitch shifter and a volume block.

Then you can assign a footswitch to these blocks. So when one block is activated the other is deactivated.

Is that what you mean?

...problem is, if you switch to pitch shifter, the current volume value get lost