Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
{ "keyboard_name": "Bigswitch PCB", "maintainer": "qmk", "width": 4, "height": 4, "layouts": { "LAYOUT": { "layout": [{"x":0, "y":0, "w":4, "h":4}] } } }