I sended you the file's.

thanks for helping

<r>I try but still the same problem.<br/>
In 2d i see level by level but in 3d the problem keeps, I gave the floor a structuur but it din't help <E>:(</E><br/>
<br/>
BTW i make a mistake <E>:)</E><br/>
i sayed floor, but mean room (levels)<br/>
i have 3 rooms (3 tabs) (3 levels)<br/>
first room ...

<t>I have a little problem.<br/>
<br/>
In 3D view in options, i can choose to show all levels of my house = no problem [:)]<br/>
<br/>
But when i select show only selected floor then the 3D show me the selected AND the underlying floors also [:((] <br/>
<br/>
i mean when i selected the basement:<br ...