only enable the hardware drivers you are using,
this way no time is wasted waiting for hardware not present

when pressing the ESC key the laser output is disabled

to restore a specific setting just click with the middle mouse button on the item

to restore the ILD Render window position hold SHIFT while starting ILD Render

ILD Render always respects the aspect ratio from Blender/Inkscpe
it's recommended to set the resolution to 800x800px in Blender / Inkscape for laser graphics