Using the Library Browser
In PLECS Blockset the library browser is opened by a double-click on the Components block in the PLECS library. In PLECS Standalone it is opened automatically when the program is started. It can always be re-opened by selecting Library Browser in the Window menu. You can navigate through the component library by clicking on the tree entries. Alternatively, you can search for a specific component by typing part of its name into the search bar.
Drag the components you need from the library browser into the schematic editor.
Note In PLECS Blockset you cannot place Simulink blocks in a PLECS schematic or PLECS components in a Simulink model since both programs do not share the same Graphical User Interface.