22 User Manual Thus, for instance, if you want to design an inner courtyard, you also need to virtualize the roof in the last floor repetition, and you must use the 3D virtualization tool in the 3D mode . You also need this tool to virtualize any slabs between adjacent floors with different plans. 2.5 Walls Select now Walls in the material list. The plan scheme changes to show the vertical elements of the building, in the color of the corresponding default solution you have chosen at the beginning of the project. Now select Wall lining. The representation changes to show the wall linings of the building. When in light gray, no linings have been assigned yet. You may want to assign some or change the walls materials. To do that, just select the walls or linings, browse the catalog and press “Assign”. Browse the different Subtypes and Catalogs through the lists in the Right Panel. If you are using the Demo version you will see only a few materials available, but enough to play with the toy building. © 2012 Sound of Numbers S.L.