<r>thank you for the reply,<br/>
<br/>
Export/Reimport was for example - when i construct a "special hole" with different objects, export it for use in the library.<br/>
<br/>
But the same problem is when i download this object:<br/>
<URL url="http://www.sweethome3d.com/models/roundDoorFrame.zip ...

<r>Hello Dear Forum,<br/>
im stil using sh3d for a while.<br/>
Now i have a problem with the "hole"-visibility from objects.<br/>
Using sh3d 5.7, today update to 6.0 - same problem.<br/>
<br/>
1) 1st Hole - with Rounded Door from BuildIn Library<br/>
2) 2nd Hole - with WallOpeningInvisible<br/>
3 ...