Mastercam Training videos from CamInstructor's
This February CamInstructor.com hosted a virtual webinar event mostly dedicated to advanced MasterCAM programming.
They called it the Big Event.
I myself watched at least 2 streams. But since it was a whole day thing, only missed a few.
Luckily they published all the videos on their web site:
Check it out before the link expires or they take it down!