The Mannequin system is accessible using the top menu. Select View | Open View Pane | Mannequin Editor. As you can see in the following screenshot, there are five areas of the Mannequin interface:
There are four top-level pull-down menus: File, Previewer, View, and Tools.
The menu options are not always enabled. They are contextual in nature which means they will only be enabled, or available to you, if they are of use based on the current context of your work.
The File menu provides you with the ability to: