help UGS does not "maintain" M4 as a permanent state.

[Jakany95]

I'm using UGS version 2.1.20. In the editor or workspace, when I select laser M4, it always reverts to M3. Is this a software bug, or am I doing something wrong? My laser has laser mode enabled, but in the UGS settings, it doesn't retain M4 as the selection; it always reverts to M3.

[atrabit]

Indeed the settings always rolls back to M3 when you open the Tool parameter window what is misleading, however the generated gcode uses M4 if it is set so before.

[breiler]

Thanks for the report, it was fixed here: #3036