2012

Lock Locks the current viewport. This is similar to layer locking.
Object Creates a nonrectangular layout viewport from a closed polyline,
ellipse, spline, region, or circle. The polyline you specify must be closed and
contain at least three vertices. It can be self-intersecting, and it can contain
arcs as well as line segments.
Polygonal Creates a nonrectangular layout viewport defined by a series of
line and arc segments.
The descriptions of the Next Point, Arc, Close, Length, and Undo options
match the descriptions of the corresponding options in the PLINE command.
Restore Restores a previously saved viewport configuration.
Layer Resets layer property overrides for the selected viewport to their global
layer properties.
2 Divides the current viewport in half.
3 Divides the current viewport into three viewports.
Horizontal and Vertical split the area into thirds. The other options create one
large viewport in half the available area and two smaller ones in the other
half. Above, Below, Left, and Right specify where the larger viewport is placed.
4 Divides the current viewport into four viewports of equal size.
-VPORTS | 1325