Is there currently a way to select to use the Gyro/Motion Control input from the iPhone while using the joystick/buttons from a physical controller plugged into the iPhone with Steam Link?

My controller is a Gamesir X2S and it seems to have no Gyro built in, but Steam still detects it as if it does. I’d love to set up Gyro Mouse aiming while using the controller, but can’t seem to find a way to do the iPhone’s gyro at the same time.