THX!

The plugin is new for me.

The file, I had seen in a video or a post but wasn't available anymore. Will be a great help.

Meanwhile I created this horrible structure:
https://workupload.com/file/gJuuHv6gYr8.
From inside it illustrates what I need, from outside it is, what it is. I will try both new tipps.

Btw is it possible to create "wholes" into objects. Let's say, I find a fitting 3d rood in the 3dwarehouse but without the dormers and I have the dormers as a 3d object separately. Can I make recess into the 3d roof to put in the dormers / windows?