Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
{ "keyboard_name": "iS0", "url": "", "maintainer": "ai03", "width": 1.5, "height": 2, "layouts": { "LAYOUT": { "layout": [{"x":0.25, "y":0, "w":1.25, "h":2}] } } }