Use the Copy To command to enable editing of a family from a read-only library. Copy To copies a single family, set of families, or a category. The copying process creates a complete category structure in the destination read/write library. After a “Copy To” family is created, the family is editable in the Merged View or in the view of the user library.
Locate a part family and copy it to the Tutorial Library:
- On the ribbon, click
Tools tab
Content Center panel
Editor
. 
- On the Category View panel, expand the Shaft PartsCirclips category, and select the External category.
- On the List View panel, locate the R-Ring family.
- Right-click the R-Ring family, click Copy To, and then click Tutorial Library on the menu. The copying process starts.
- After copying is finished, information in the dialog box is automatically refreshed.
The R-Ring family is enabled, and an icon identifies that a read/write copy of the R-Ring family now exists in a user library. The original read-only family is still available in the standard library, but it is replaced with the read/write copy in the presented merged view of available libraries.
- Right click the R-Ring family and select Family Properties. Open the Link tab and review the information about creation method and parent family. Then, close the Family Properties dialog box.