If your double valve is on a single channel... it's not going to work.

The sequencer has control, and doesn't understand that the single channel can do more than one operation. Think about it... if allowed a double use, and someone messed up a mix... you could quickly over-extend a manual valve, or servo driven gear door.


The only way I could think about making it work... is if there is a way of stopping the sequence until another condition is met. (ie a switch)