I can't figure out how to assign a second VS pump to one of the Aux pump outputs in iAqualink. I have one intelliflo (address 1) set to filter pump, which works and is linked to the filter pump button. I have a second intelliflo connected (address 4) that I can assign to the filter pump as well and will work when filter pump is pressed, but I can't figure out how to assign it to one of the other pump outputs. If I select "Aux Pump" in the setting I can't figure out how to link it with any Aux output.