I, personally don't use mpg. Keyboard with camera and touch plate are quite enough
![Smiley :)](https://www.machsupport.com/forum/Smileys/default/smiley.gif)
You can buy cheap USB "endoscope" camera on AliExpress. I have one permanently installed on machine and it works with Karl's camera plugin.
Edited some buttons and added some DRO's on BigTex screenset.
Defined parking position, measured offsets between camera and spindle centre, ...
When i drill my prototype PCB's, they are NEVER aligned with X or Y axis, added some buttons with appropriate VB scripts (thanks Tweakie) to calculate the system rotation, .....