Wildfire 2.0 backmilling problem

[yar_seliva]

I've got a problem with backmilling in Wildfire 2.0. I've been using Pro/NC for about a year now, and this problem has me stumped.

I need go through a hole in two plates to machine a counterbore; the counterbore is not accessible from the front side (see pics). I've been trying to do this with trajectory milling, but I can't get the cutter to "slice" back towards the machine tool (+Z). It's been suggested to me that I use volume milling, but no luck with it either.

Anyone have any success with backmilling in WF 2.0?

yar_seliva