I use a Morning star MC3 midi cotroller that is capable of doing exactly this. But due to the latancy of the Catalyst I don't use that function during song. The nice thing about programming the Morningstar controllers is that they use a Web based programming tool that incorporates a whole variaty of brands/models including the HX stomp. Maybe one time they incorporate the Catalyst but it is not that difficult, with my 73 years it was a paece of cake ;-)