Guide for P4wnP1 Mac Users

I am a beginner to this and would like to know if there is a full guide for setting up P4wnPi on mac. I am able to get it connected to my network and I can ssh into it. When I try and run the hidkeyboard. payload on my mac, it doesn't run the keystrokes. I have read the P4wnP1 boot screen on startup and it said USB OTG not enabled. How can I enable USB OTG and how can I get the raspberry pi to inject keystrokes?

Thank you in advance.