Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
#OLD WAY # dfu-programmer atmega32u4 erase --force # dfu-programmer atmega32u4 flash /path/to/firmware.hex # dfu-programmer atmega32u4 reset # run this in the qmk_firmware directory make dz60:chrisae9:flash