here an update about my work flow:
about making sections. Yesterday I spend all day to find a way how to produce 2D output with 2D Layout WIP in combination with all other programs I can use in my office, such as Vectorworks 2014, AutoCAD 2017, Indesign, Affinity Designer. I couldn't find a way to get any result.
as I described above, I continued working on that workflow related to a more architectural project with higher complexity. Using the section tool in the 3D model and copy the 2D section into another 3D model (with or without layer override options) works fine and rock solid. It is easy to add some more details, or other objects with shaded filling, layers, add dimensions etc. All of it took only little time. The benefit is override layer options. Think about what you can do with this... Let's say make a texture instead of a hatch. If you communicate with other company's they do not really need millions of hatch lines. So that's not important. They do want the main objects. And because 3D model work with good geometry, thats handy.
Now, crucial in the workflow I am talking about is printing output.
I found out I could print to a PDF on scale! All materials nicely shown in the section, because actually the geometry is exactly as it is modelled in a 3D model, although it is now 2D.
What ADS could do is add a little more options about printing output, such as layered PDF, viewports like we can use with the Renderzone rendering.
I believe the solution of all problems with 2D layout module could be just using the 3D modeller, in any way.
If I find some time I will make a movie about this workflow. Or If anyone is interested to develop this workflow with me, let me know.
At least for this moment... it works.