Issue Description
You may need to move or delete holes modeled within your Elements to accommodate objects such as staircases, or for an open atrium space.
Solution
1. Select the slab, mesh or roof tool.
2. Hover over the corner of the hole and let the cursor turn to a tick. Now activate the Shift key and left-hand click the mouse to select the hole.
3. The whole slab, mesh or roof will be highlighted but the nodes will only be visible around the hole. Now you can treat the hole just as you do the element. So you can manipulate the hole by adding nodes etc
4. Move the hole by using the drag command,
5. Or simply hit the delete key to remove the hole.