Ok, people. I just figured it out. Instead of using SketchUp, I will go for LayOut (part of SketchUp) and there it is possible to change the thickness of the individual lines.

Anyway, thanks!

Hello!

I hope I'm not that bad at googling but unfortunately I did not find any satisfying answer/solution.

Anyways, I would like to create a 2D floor plan and for this I need to adjust the thickness of some particular lines. I know that there is the possibility to make them all thicker (view -> Edge Stlye), however, I just need to make a few lines thicker.

Is there any possibility how to do this?

Thanks in advance!