The Create popup menu contains the following commands:
State enables you to create a State in the diagram. If prompting is switched "on" for States you are prompted to name the State. Alternatively, if prompting is "off" you can name it later using the Alter command from the State pop-up menu.
Transition enables you to create a Transition in a State Transition Diagram.
Text enables you to create a textual comment in a diagram. This comment is text that is not directly related to a diagram component.