Dwell or Pause GCode G04P…

Hi Guys,

Ive been trying to simplify inserting the G04 Gcode to let the spindle have some time to rev up to target RPM before it starts cutting.

So far I do manually insert the G04 code by editing the saved Gcode in Notepad. That works, I was wondering if anybody has idea how that can be Generated automatically so I dont need to edit every time I have adjustments or update on my design CAD.

TIA

Im using CC free edition for CAD CAM.