Add on/off switch next to the slider on non primary monitors

[2nv2u]

It would be nice to have an option in the settings to add switches next to the slider on the non primary monitors to turn them on/off.

[daitj]

This is bit out of scope of the brightness control, as you could do this with simple shorcuts for monitor configuration. But I will leave this open if someone wants to pick this up and contribute to this project.