Is there an easy way to change a 3D Viewport configuration?
Yes there is “XCLPVPORTS” command , the command is accessible via “Clipboard” pull down menu. You can copy 3D viewport configuration ( eye point, target point, view twist and scale of all 3D viewports simultaneously between the drawings using clipboard ). The User perceives this command like simultaneous change of all 3D projections with the model space objects intact.