MicroStation has 8 No. View Windows. A big advantage for 3d modeling. Main reason a lot of users don't use Sketchup. ACAD's Viewports are clunky in comparison. Mstn has always had a big advantage in being able to draw across multiple Views w/o having to click on the View to activate it.

One problem is that a lot of operations are View dependent. Biggest example is ACS control.

It would be good to make the default colour for the Active View Window stand out more. The default blue : blue is not contrasty enough. It would be good to up the contrast, saturation for the Active View Window's top bar and frame. Five minute job?

Even better if the Preferences > View Options could provide an option to pick any colour.