I installed VW 3 yesterday for my XC-540 and couldn't find a PerfCut button anywhere. I guess now I'll have to read the manual...
Just like the "CutContour" path, create a new path and call exactly like this:
PerfCutContour
Versawork will recognize this and open up a new dialog box under Cut Only.
Roland recommends to control cut and perf pressure (gf) from the software.
I personally could not make the pressure work correctly from the software - Either the cut was to heavy or light or the perf was cutting too deep or both.
I tried all combinations of control from the menu (printer) and software without success.
Docs are found on RolandDGA website under support.
I hope that helps.