Use the Engineering Data Materials Settings dialog to do the following:
Add material libraries to your project
Select the active material libraries
The Engineering Data Materials Settings dialog can only be accessed from
the Engineering Data Materials Dialog. Click the Settings icon 
to display this dialog.
Add Material Libraries
You can add material libraries from other sources to your project.
Click Add Library. A file open dialog is displayed.
Select the desired material library file and click . The material library is then listed in the Settings panel.
Select Active Material Libraries
The Active Libraries group lets you choose which material libraries are active for searches. To select a library, click the check box next to its name.
The default installation has libraries that are not active. The selected libraries are persisted from session to session. Note that some libraries may be not available in your product.