This may be an AutoCAD related desire, but since there is no AutoCAD Idea Forum and I primarily use Civil 3D, I decided to post here.
We already have the ability to split up model space (model tab) into s separate viewports. It would be really nice to have the ability assign different layer states to each viewport in model space. Currently I have to go to paper space (layout tab) and create separate viewports there to see different layers states.
Hopefully others find this a need as well.