Only changes made in the current session of Build Mode can be undone or redone once play is switched to Live Mode, or the lot is exited, those actions cannot be undone or redone. If an action is undone, redo will reverse the undo.
The tool can be clicked and dragged to select multiple objects or elements simultaneously. Clicking on an object will delete the object (unless the object cannot be deleted). Clicking on an object will make an exact duplicate of it and will focus the catalog on that object. Clicking on a wall or floor covering will switch to the appropriate area of build mode and select that covering so it can be applied. The following tools or menus (and their keyboard shortcuts, if applicable) are featured on the build mode tool menu:
