ArchieWester

I'm building a vehicle where I need two motors controlled separetely, which I have fugured out how to do, but I want each motor to move forward and backwards, and on the DX5E transmitter, as well as almost all other transmitters, only the right joystick returns to the center and the left joystick does not (because it is mostly used for throttle). I was wondering if anyone knows how to attach springs or whatever you need to do to make the left joystick on the DX5E transmitter return to the center position. Thanks!