Select, Move and Snap a Viewport to an exact Paperspace Location in Existing Dwg.

Hi;

How can a select an existing viewport, move and snap it to an exact paper space location in an existing dwg.?

This begs the question, what layer is the viewport edge on if I want to select it?

If nothing is frozen, and I toggle to MM from SM and I can't pick the viewport edge, what is the problem?  The edge of my viewport shows up as different colors on different sheets when I toggle to MM.  That's why I'm asking what layer they should or could be on?

Thank You.