2012

The Hide/Show Layer Filters button controls the display of the Layer Filters
pane of the Layer Properties Manager. When the Layer Filter pane is collapsed,
the Layer Filter button is displayed adjacent to Layer Filter status text. The
Layer Filter button gives you access to the filters when the full Layer Filter
pane is closed.
If there are xrefs attached to the drawing, an xref node displays the names of
all the xrefs in the drawing and the layers in each xref. Layer filters defined
in xref files are not displayed.
If there are layers that contain property overrides, a Viewport Overrides node
is automatically created and displays those layers and the properties that
contain overrides. The Viewport Overrides filter displays only when the Layer
Properties Manager is accessed from a layout tab.
If there are new layers that have been added to the drawing since the layer
list was last evaluated (depending on how the LAYERNOTIFY system variable
is set), an Unreconciled New Layers filter is automatically created and displays
new layers that need to be reconciled.
Tree View Shortcut Menu
Provides commands for items selected in the tree view.
Visibility Changes the visibility state of all the layers in the selected filter (or
All or All Used Layers, if selected).
■ On: Objects on the layer are displayed, plotted, and regenerated and hide
other objects when you use HIDE.
■ Off: Objects on the layer are not displayed and not plotted but do hide
other objects when you use HIDE. The drawing is not regenerated when
you turn the layer on.
■ Thawed: Objects on the layer are displayed and plotted, and hide other
objects when you use HIDE.
■ Frozen: Objects on the layer are not displayed and not plotted but do hide
other objects when you use HIDE. The drawing is regenerated when you
thaw the layer.
Lock Controls whether the objects on the layers in the selected filter can be
modified.
■ Lock: None of the objects on the layer can be modified. You can still apply
object snaps to objects on a locked layer and perform other operations
that do not modify those objects.
■ Unlock: Objects on the layer can be modified.
646 | Chapter 12 L Commands