Model Builder Community

I am having difficulty in using the library. If I select a thumbnail and press "copy", nothing happens, that is, it won't paste, the page just goes dark. I am assuming the library contains more materials than those shown in the standard selection windows. Can anyone straighten me out please.

I note that when selecting a scale of 1:75 and printing "Stones" one of the printed stones measures 1.7cm. This would translate into a real stone of well over a meter in width and I would have thought this to be excessively heavy and would have to be installed using a machine. My mathematics may be ...

It would be nice to have a color palette to change the color of selected siding, bricks, etc. Also, siding and roofing with an overlap match line to permit cutting of strips for a more realistic finish