Use input signal to start or pause a 3D print?

Hello everyone,

I'm working 3D printer and would like to use an external button on my Arduino to pause and resume my print.
Does anyone know how I would do this?

Ideally I would like to pause my print on a specified place with a Gcode command in my print and then afterwards be able to resume the print with a signal from outside my printer.
If anyone has an idea how I would do this, please let me know. I'm also open to alternatives like a pause and resume button or something like that.

Greetings,

Alex