[FEATURE] GCODE Toggle button

[UlliMUC]

Is your feature request related to a problem? Please describe.
Possibility to use a GCODE toggle button, for example to switch the bed temperature between 0°C, 60°C and 70°C. The following scheme:

0 button press 60 button press 70 button press 0 button press 60 button press 70 ...

Describe the solution you'd like
a simple one :)

Additional context
none

[LuxuSam]

Hi,

I have a lot to do at the moment and cannot really work on feature requests for now.
But generally having a toggle to switch between actions would be nice.
This is probably related to #32. I prepared some code for this, but did not manage yet to change the interface and test the implementation.

Cheers,
Sam

[antonyburden]

I look forward to this, it will be a great feature especially for those without enough GPIOs (like me!)