The Library view displays the method content that is available in the current method library, which is organized into sets of method plug-ins and configurations.
then the Library view will display the plug-ins in a flat and hierarchical presentation as shown here:
The flat presentation displays all the plug-ins in alphabetical order. If you have many plug-ins in your method library, you can switch the Method Plug-in presentation to hierarchical. The hierarchical presentation displays the plug-ins in a hierarchy that is presented within logical packages.
To switch the library view Method Plug-in Presentation, from the Library view toolbar, click the triangle dropdown menu and select Method Plug-in Presentation then the Flat or Hierarchical Presentation.
button in the Library view .