Ok so I've got a wild Idea to get the SP1-L6H working with a Helix LT.
It's actually quite a simple concept, plug the expression cable in as normal and then convert the toe switch to a midi single with this and plug it into the MIDI input of the helix. The doremidi has a switch setting that will take the activation of the momentary switch on the pedal and convert it to a basic CC midi command.
Now am I crazy or is this a very simple and affordable solution to get an additional toe switch?