To create shelf holes in a cabinet:
- Press the Shelf Holes button in the Solid > Modify panel.
- Select a face to cut holes for shelfs.
- Select the front edge of the selected face.
- Select the bottom edge of the selected face.
- Select the face opposite the selected face.
- Specify the hole diameter, hole depth, row spacing, location type, front offset, back offset or column spacing, top offset and bottom offset.
- Check the Center Vertically checkbox to center the holeset vertically.
- Check the Constrained checkbox to create constrained geometry.
- Check the Find Edges checkbox to find the front edge, bottom edge and opposite face automatically. The face has to be in the YZ plane to find the edges automatically.
- Press the OK button.


