Starting as a custom product, this switch was designed to hold 3 SPST momentary switches. 2 are wired to act as your HX Stomp Aux switches, and the 3rd is wired as a Normally Open switch with it's own 1/4″ jack to control.
*Note that the HX Stomp can only support 2 switches, the 3rd switch has it's own 1/4″ jack to control a different pedal.