Adding Second Ender3 S1 With a Second Camera

Hi all, I have a Sonic Pad with an Ender 3 S1 with a camera all working great.

I have a second Ender 3 S1 with a camera, but it wont pick up the second camera, just displays 2 screens both with the same 1st camera picture.

I know I can use a second camera, but cant find out how to set it up

Any help greatfully received

Thanks MAdbDit

I have 2 printers on a Sonic Pad, both with cameras, at present you can use one and not both. I am waiting on Creality to update the firmware, but they seem to have given up on the Sonic Pad. I have read about people rooting the pad and installing some other software but I couldn’t get it to work.