This cannot be performed easily.
In this example I want to trace around this skylight so I can carry the hidden lines to another drawing.
I draw a line around as in here:
Then I want to find the intersection of that line with the model and I can’t, so I have to create another line in 2D space and then use the knife to break it, and then the eraser to clean excess.
This could be a lot easier to do and it makes tracing objects very hard.
One alternative would be exploding but that is a lot of trouble. Copy pasting lines from sketchup to Layout implies a lot of work too.
Tracing is key for linework and it’s very hard with current model inferencing.