From the Start Screen, you can create a new diagram and choose which type of diagram you’d like to start. Depending on what type of diagram you are going to create, it will load those appropriate shape libraries for you on the left side.

For instance, if you were going to start a blank Flow Chart diagram, you would click on “Flow Chart” and it will load a blank canvas with Flow Chart shapes already loaded for you on the left side.

If you are in your Document Manager, you can create a new diagram from here by clicking Create->New Diagram.