Copy an object to the same position on another floor
Copy an object and paste it onto one or more other floors so it lands at the same plan position there.
To put a copy on another floor at the same place, press Ctrl+Shift+V after Ctrl+C: 'Copy paste to a different floor' lists the building and its other floors; pick the floor(s) and click Paste.
The copy lands at the same plan position on each chosen floor.
Ctrl+V instead places it where you click.