You
can lock, unlock, or break the external references of components or features created in the
context of an assembly and the external references of various types of derived
parts.
When you lock the external references on a feature, the existing
references do not update and you cannot add references to that feature.
After you unlock the external references, you can add references or
edit existing references.
When you break the external references, the existing external
references do not update and cannot be restored. You can add references to the
component. You can replace broken sketch relations with sketch relations that do not
reference the assembly.
You can select the top-level assembly or a subassembly and list all
components within its hierarchy that contain external references. Individual
references are not listed. You can lock, unlock, or break external references for
all components listed or for selected components.
You can select a single item and list its external references. You
can lock, unlock, or break all the references at the same time.
You can break, unlock, or lock external references by using dynamic
reference visualization in the FeatureManager design tree. See Viewing Feature Relationships.
For frozen features with out-of-date external references,
SOLIDWORKS prompts you to lock the external references. You can lock the external
references or manage the external references as locked for the current session.
SOLIDWORKS does not update locked external references during a
rebuild. As a result, the model is not marked out-of-date.
To lock, unlock, or break external references in
the External References dialog box: