Well, I agree with you but I’m stating the opposite.
You want an alternative method of configuring the current 3D scenes. That would allow us to free Sketchup from a lot of scenes and have that setup inside Layout. Makes sense!
What I want is a different way to deal with the Sketchup model: I want Sketchup to export 2D drawings that look exactly like sketchup scenes. These would then be really fast to use in Layout and solve one of it’s major shortcomings which is obviously viewport regen speed. I have tried to convert my scenes to 2D drawings and send to Layout and they rendered oh so fast. As fast as AutoCAD’s parperspace.
(Creating these 2D scenes envolved exporting DWG from Layout, then import into Sketchup, then generate faces and paint them as a 2D sketchup model and send them back to Layout.)
So, you’re proposing a different workflow to solve scene management. I’m proposing a way to solve speed. They are compatible and I could see myself using both, but they are not the same. Mine would require a new kind of bridge between Sketchup and Layout.
Imagine if there was a multi scene SVG exporter for Sketchup, (or PDF) scenes and if Layout could import those SVG or PDF drawings in vector format instead of viewports. We could then just insert them and work fast. But of course, we wouldn’t need SVG or PDF, we would only need a Sketchup 2D file to work as a bridge.
NOTE: Sorry but I thought I was replying in continuity with this topic here: