Wing with p16

Hi everyone, can you please put more tap points on user signal? In a band with p16 and monitor and side fill with one mixer, if we duplicate the channels, to send FOH and monitor, then we don't have channels to send to p16, if you add more tap points on user signal, which will work independently of mix buses tap point, then we can have something similar to ultranet, please think about that, it's really difficult until know…thank you!!