In a layout, switches
from model space in a viewport to paper space.
The program switches from model space to paper
space when you are working on a layout tab.
On the layout tab, use paper space to create
a finished layout of a drawing for printing. As part of designing
your layout, you create layout viewports, which are windows containing
different views of the model. By switching from paper space to model
space (see MSPACE), you can edit
the model and views within the current layout viewport.
You can make a viewport current by double-clicking
inside it. You can switch to paper space by double-clicking an area
of the paper space layout that is not within a viewport.
When in paper space, you can also switch to
model space by clicking Model on the status bar. If you are in model
space, you can switch to the last paper space b clicking Paper on
the status bar.
You can also switch between
layout and model tabs at the end of the drawing area.