I have created a 3D candlestick shape using the Sweep function. I am trying to push 4 holes into it using the Push/Pull tool in Sub-face mode. The holes cannot be made by drawing the profile into the sweep so this seems the way to do it. I am drawing 4 circles using the 2D planar circle tool on the face I want to subtract them from 9using automativc plane so they are on the face). In Sub-face mode I then select one circle, then select the sweep object then push into the required depth. I get the message Push/Pull Failed. I have tried converting the sweep object to NURBS, to a generic solid, grouping it andcomposing it but non of these work. What am I doing wrong?