It would be a real time saver to have the ability to paste lines copied in one view into another view but without them changing orientation in the process, ie' so that once pasted, they appear the same rather than being rotated into practical invisiblity (in reality, showing up as a single line comprised of all those lines on one plane seen on edge).

I routinely copy lines drawn in one file/view where they were perhaps in the TOP view into another file/view where I need them in say the LEFT view. I envision this option to be a right click menu, 'paste into view' perhaps?

That's very good suggestion and will assure one can see the result of the paste command. It still leaves the issue of correcting orientation though, which 'paste in view' would take care of in one fell swoop. I have assigned 'A', 'S', 'D', and 'F' (traditionally under the left hand on a QWERTY keyboard) to Left, Right, Top, and Front views and have never needed the multiple layout view since view changes are a millisecond away and leave me with the full available working space. As I'm thinking of it, I'm going to assign a keyboard shortcut to switch to multiple viewports and back as this should make it more efficient getting 2D elements in the proper orientation.