This dialog provides options for restoring metadata information that has previously been saved (see Backing Up and Restoring Metadata.) The menu option to restore metadata information is available only when an existing metadata is selected in the Metadata Explorer.
The backup metadata information will be restored to the currently selected metadata. No new metadata is created in the Mangement Center. If you wish to restore metadata information to a completely new, or empty, metadata, first create the metadata using the 
New Metadata icon in the toolbar, then make sure that it is selected in the Metadata Explorer.
Standard Restore
Choose this option to restore a complete metadata file, overwriting all information in your currently selected metadata.
Custom Restore
Choose this option to open the Restore Metadata wizard and select information from a metadata backup file and add that information to your currently selected metadata.
Opening the Restore Metadata Options Dialog
In the Management Center Metadata Explorer, select a metadata, and from the right mouse button menu, choose Restore Metadata.