Thank you Jim, I'm new to the board.
Cipes, I think my issue is with the ability to grey out entire layers in hidden line mode, without them becoming transparent.
I have a series of buildings. All referenced in on their own layers in a mid scale multi family project. So in section and elevation views I want to be able to grab the layers of the buildings in the background and turn them grey with the eye tool.
You can see an axonometric view of my complex of buildings in the images attached, then an elevation view where those pesky buildings in the background are hanging out. I want the background buildings to show in elevation, just as grey lines as opposed to black thin lines.