Scaling Views and Linetypes (PSPACE)
To scale a model space view relative to paper space
- Make sure that you are in floating model space.
On the status bar, MODEL is on and TILE is off.
- Click inside a floating viewport to make it current.
- From the View menu, choose Zoom. Then choose Scale.
- On the command line, enter the scale factor followed by xp.
For a 1:4 ratio, for example, you would enter 0.25xp or 1/4xp.
Standard toolbar: 
Command line equivalent: ZOOM