In the Database Manager window, all installed libraries are represented as tabbed pages in the lower pane.

To add a library to the Database Manager window, use the Install Library feature in the Server Manager window. Similarly, to remove a library, use the Uninstall Library feature in the Server Manager window. The Mass Frontier software package includes the HighChem Spectral Tree Library (electrospray ionization (ESI) positive and negative) and the HighChem Fragmentation Library.

To open a library, click the library tab in the Database Manager window. To switch between spectral and fragmentation displays, click the Tree or Fragmentation tabs on the right side of the upper pane.