panel constructor: A procedure called when the user selects a dynamic menu entry, or when a preconstructed menu is compiled. The procedure constructs and returns a specification for a transient menu.
Peer Menu Connection: A connection that links two adjacent entry or divider templates in a menu.
Popup Menu: A freestanding menu that can appear anywhere in a G2 window in response to a mouse click.
Popup Menu Template: A template that defines a popup menu.
posting callback procedure: A procedure that GMS calls whenever a particular menu is displayed or undisplayed.
preconstructed menu: A menu defined by a panel constructor at compilation time rather than at display time.
preconstruction: The practice of constructing a dynamic menu once when its specification is compiled, rather than reconstructing it every time it is to be displayed.