Using V4 motors with a V5 cortex

Hello, I am on a vex robotics team that recently got V5 motors. We only were allocated four per team and will have to use V4 motors for the rest. We are not part of vex therefore we can do this for competions. Does anyone know how to make this work with the v5 cortex? Thanks again.

You would want to use a power expander to avoid shorting out the 3 wire ports meant for sensors.
You’d probably set them up as analog outputs, and set them to the motor speed.
This is generally not a good idea, but, from the countless other threads on this topic, it seems feasible.