Process Annotations

According to the help, when processing annotations is enabled, a dedicated annotation processing command appears in the Build menu. I have enabled annotation processing, and in fact it is clearly working as part of the make process (it is using the output folder that I define, and it is generating the sources). However, I need the ability to invoke the annotation processing independently of the make, which should be avilable, but the menu item never appears. Nor does the shortcut key work.

What must I do to get this menu item to appear?