To move all the zones you have created together at the same time, you use the ALT button when you are dragging. This is explained in the Editing section of the Manual and Help screen, i.e. Holding down the Shift button allows more than one node to be selected.·
Holding down the Ctrl button allows the whole zone to be selected. Holding down the Alt button allows all zones on that level to be selected. Highlighted nodes can be dragged to a new position.
If the whole building is to be moved for the first time, select a node in a zone, select a second node with the ALT key down and drag. The roof line must be dragged separately.