Getting started 23 There are some shortcuts to ease the task of assigning materials. When you click inside a room, all the walls are selected or, if in Wall lining mode, all the inner linings. By clicking or pressing "F" (façade) all the outer walls of the plan will be selected. If in Wall lining mode, all façade inner linings will be selected. By clicking or pressing "I" (inner) all the inner walls will be selected, or the inner linings if in Wall lining mode. When all the wall linings of a room are selected (by clicking inside the room in the wall © 2012 Sound of Numbers S.L.