MillWizzard

I just downloaded a MillWizzard Demo and made some toolpaths on a
fairly complex .stl
I was impressed with the ease of use. It's set up just like a Windows
"Wizzard".
My only gripe is that they advertize on the weebsite that you don't
have to be a machinist. I would disagree. Software like this makes it
much much more easy to crash a machine.
I am wondering if there is any easy way to do "collision
avoidance". For instance, all the smaller diameter endmills have 3/16
or 1/4 (or larger) shanks above the cutting flutes. Depending on the
degree of taper and the shape of the surface this may or may not be a
problem, but it is impossible to know if you have collisions. (without
running it)
I am not complaining, I like the software, but I think there is alot
more work to get to a finished toolpath.