To cut your worktop around a Belfast sink, please follow the below steps:
1. You'll need to edit the worktops. This can be access via auto features with edit worktops selected or by choosing edit worktops on the drop-down arrow under auto features.
2. When editing the worktops click on the triple cut button.
3. Click on the red square near the Belfast sink. A square will appear. Move this into position near the sink.
4. Click on the stretch selected edge tool.
5. Stretch the 3 red squares into position around the sink.
6. The worktop will now be cut around the Belfast sink.