Enable usb/bluetooth joystick

Since the chronic lack of buttons/rockers to use the herelink in any professional operation (the wheel to control the gimbal with a button to switch between pitch and pan is a joke), would it be possible to let the unit “see” and map additional axes from an usb/bt external joystick?
I can connect the joystick trough otg and see the traditional axes move when i move the joystick but i can’t assign the additional axis to channel, they just operate same channels as the joysticks on the unit.
I think it would be a great addition to the firmware for all those people that want to use a gimbal and/or a couple more buttons.

This feature is underway