Changing direction of motor and ESC. High end ESC like Tekins and Castle by Hotwire(Tekins) and Castle( program card). Brushles motors are easy to change direction like brushed motors. Bruskless motors has 3 wires A, B,C.. B wire mostly Grd. Switch wire A-C, and C-A, Cross them over. That will change motor direction. All RC hobbyist know that. Racing Drone we do that in every build. Good luck and have fun.