3rd expression pedal before stack?

  • At the moment I have my powered rack and remote set up with a Volume pedal and a Wah pedal. Would like to add a 3rd that would go just before the stack.

    I can't seem to see how to do this, as it seems the Volume pedal is the only one that can be located in different positions. Don't really want to take out the master volume.

    Have watched the tutorials but still none the wiser.

    any help would be appreciated.

    regards

    Andy K