Thanks for the information, I went ahead and bought one. It does work asI imagined. I have mounted the Tx module to the right of the 35MHz socket and can now change between 35 MHz and 2.4 GHz using the locking switch, no need to open the back and relocate the plug.

Good if you still fly with some 35 MHz but expensive for a switch and some sockets at 48 Euro......

Norman