Feature Scope in Assemblies
When you create an assembly feature, you specify which components you
want the feature to affect.
Pattern features inherit
the feature scope from their seed feature.
Set the following options under Feature
Scope in the PropertyManager:
All components. Applies the feature
to all components in the model every time the feature regenerates. If
you add new components to the model that are intersected by the feature,
these new components are also regenerated to include the feature.
Selected components. Applies the feature
to the components you select. If you add new components to the model that
you want the feature to affect, you need to use Edit
Feature to edit the feature, select those components, and to add
them to the list of selected components. If you do not add the new components
to the list of selected components, they remain intact.
Propagate feature to parts. Adds the
feature to the part file for each affected component. If you pattern the
feature in the assembly, the pattern feature also propagates to the part
file. In the part, external references to the assembly feature are created,
and the feature appears at the bottom of the part's FeatureManager design
tree. For sketch-based features, a derived sketch is created in the part
as well. You edit the feature in the context of the assembly. If you want
to edit the feature from within the part document, you must first break
the external references.
In the part document, you
can right-click the feature and select Make
Independent to break the reference.
Auto-select. (Available if you click
Selected components). Automatically
selects all components intersected by the feature. Auto-select
is faster than All components
because when you make changes to the feature, only the components on the
initial list are regenerated (instead of all components in the model).
If you click Selected components and
clear Auto-select, you must select
the components in the graphics area you want to include.
Components to Affect 
(Available
if you clear Auto-select). Select
the components to affect in the graphics area.
To edit the feature scope:
Right-click the feature in the FeatureManager
design tree and select Edit Feature.
Make changes under Feature
Scope in the PropertyManager, then click 
.
Related Topics
Assembly
Features
Extrude
PropertyManager
Revolve
PropertyManager
Hole
Wizard PropertyManager