Masking in different scenes I am a bit confused how to manage my problem.
I have got a setup of a building site with several cameras and about 150 objects. Now I want to emphasize one of these objects by using freestyle.
Due to the many objects I created a new scene with only lighting, the emphasized object and another one that I turned to holdout. To exclude all objects except the emphasized one from freestyle by using the collection option is set. This works fine so far.
But I try to assemble one file using the compositing nodes from the emphasized rendering and the rest of the site witout freestyle in just one render.
The problem is, when I switch in th object properties the mask option holdout it is set over all scenes.
How can I fix this to decide in which scene the holdout should be used?
Thanks in advance
Lutz

This is what I expect to get but I can only get the result while changing mask settings between rendering.

And this is what I get when rendering both scenes with compositing. The black area is supposed to be transparant in my resulting picture.
compositing setup

And here is the *.blend file:
O.k. got it. The hint of Gorgiuos sent me to the desired direction. If I duplicate the object LINKED (Alt + D) then I can switch different options to the scenes and don't have to care about mesh updating between scenes and rising file size.
Thanks so far.