You are absolutely correct, I should have looked at the program first, so I did.
I downloaded FeatureCAM, installed it (a rather lengthy process), then spent about about an hour figuring out how to use it. Pretty intuitive, but takes a bit of playing around to figure it out.
The answer is: Select the Setup operation, then Properties>Stepover> Cut Type = Spiral, Ramp Type = Arc. Play with the rest of the parameters and simulate until you create the tool path you want.
You can also set the plunge point(s) off of the material from the Properties>Plunge tab. In this case I just set one at the top, but you can set mutiple if you want.
http://www.cnczone.com/forums/attach...d=346636&stc=1