Electropermanent magnet integration

Hi guys,
I am currently building a VTOL UAV based on babyshark config. I was wondering if any of you have any experience with EPMs (electropermanent magnets). I am using AUX channels 1-8 to control the main escs, VTOL escs, Ailerons and A-tail. The EPM works on PWM and requires another channel. Do i need to make an additional pass thru channel on the TX and q ground control?