[How to rotate a PV module relative to the location of a building?]

Hi Martin, - thank you for your quick reply  

OK I see, - but is it always necessary to extrude buildings from ground level, even if we use 3D import via eg Goolge or Bing etc.?

Kind regard

Mikael

[How to rotate a PV module relative to the location of a building?]

Building location
Project Flat roof with east-west PV modules
We want the PV modules to follow the building, but the building is not located directly to the north / south, ie it is inclined to the east-west (see picture).
And when you insert the PV modules, they are placed east-west by default.
So how do we rotate / rotate the direction of the modules so that they follow the building / roof?