Joined: May 12, 2013
Post Count: 1545
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Re: Techo/Piso
Maybe I misunderstand, but did you add rooms with the room tool (Plan-Create rooms / Ctrl+Shift+R)? If not, draw a room. Or if walls are connected/overlapping around a room, just double-click inside the walls. Then you will have (opaque) floors/ceilings.
ok
PS Hiding the lower levels from the 3d view is not possible, it is either all levels or current level + all below.