Here's the problem:

My boss wants me to show the walls of the building in very light (.05mm) line weight on the plumbing and mechanical plans so that the plumbing and mechanical lines stand out better.

I build only one model, and build all of my dimensions, plumbing, electrical, etc on that one model in different layers. Each of the different plans (floor plan, electrical, plumbing, etc) is just a sheet with a view port where I turn off the layers I don't need. Is it possible to make the same walls have different line weights for different view ports?

We're not building these as ADT projects. It's just one file for all of the pieces.

As always, thanks in advance for your help. One of these days I hope I can contribute something useful in return.

Tim Glass