Duplicate camera controls?

Does anyone know if there is any way to have duplicate controls for the cockpit camera?
I have just set up an extra joystick to control the cockpit camera, which works fine, but now I find the mouse will no longer move it.
Would be nice to have both.

Aha! Just found the solution. Use the (lockable) option for the view axis and then mouse will work also with centre or right click.