Multiple Viewports

In Milling, CDL-V3 allows the simultaneous viewing of your drawings from 4 separate angles. The 4 views are all active windows, so objects can be selected from any of the windows, to make geometry or chains.  You can even draw lines from a point in one view to a point in a different window. Any of the views can be expanded into the main window, and the small window's viewpoints will automatically be adjusted to suit.