SW04 Extruded Cut question

I am trying to make an extruded cut of a rectangular profile into the side
of an elliptical solid. I want the cut to go into the side of the solid
exactly 2mm. In previous SW versions I was using offset from surface but
for some reason I am coming up empty with this one. Any ideas appreciated.

 

your sketch sould be outside of the solid, use the offset from surface /
reverse offset command. also make sure that the cut is pointing toward the
solid.

 

Got it. Thanks. It is somehow more logical to specify the surface and
request 2 mm lets say off that surface rather than a reversed surface and go
" backwards " Thanks.