References/Where Used Tab

Show References

Show one level of references Shows one level of model references. For example, if a selected assembly contains a sub-assembly, the sub-assembly document is listed, but its components are not.
Show all levels of references Shows all levels of model references. For example, if a selected assembly contains a sub-assembly, the sub-assembly is listed, and so are its components. The component names are indented under the sub-assembly name.

Look for

Select items to show on the References and Where Used tabs in the expanded view of SOLIDWORKS Explorer:
Model references (for References). Searches for all models that are components of a selected assembly.
In-context references (for References). Searches for all components created in the context of the selected assembly.
Assemblies and drawings (for Where Used). Searches for all assemblies and drawings where the selected model is used. When cleared, searches only for models defined in the context of the selected model.
Virtual components (for Where Used). Searches for all virtual components where the selected model is used. Selecting this option has significant performance impact.

File Locations

Folder path Lists folders to search for models for References and Where Used.
Add Folder Adds a folder to Folder path.
Remove Removes the selected folder from Folder path.
Include SOLIDWORKS File Locations->Referenced Documents folders When selected, searches folders that you specify for Referenced Documents in the File Locations Options dialog box in the SOLIDWORKS application. When cleared, searches only the current working directory.
Limiting the scope of the search by clearing this option reduces check-in time.
This option is superseded if you select Include drawings under Check in on the Command Defaults tab. In that case, only the working folder is searched.