info@deltarov.com here is our email
yes, you cannot find this in QGC. You can find this in joy.cpl. When you press the Swap Axis then try to move the joystick you can see the other axis in joy.cpl will be functioning.
for this one, for the meantime we don’t have a manual because the controller is custom made. But will try our best to help you solve your problem.
The trim encoder is where you can adjust the trim manually. but when you use the trim lock you can use the joystick for adjusting the trim.
As I seen your message in email that you prefer by email because on phone call you get lost signal. We will try our best to answer your question. Just let us know your concerns here in the forum. Thank you.