MainButtonBar command

Action:	Determines the position within the Client window (non-external) of the main button bar. To place the button bar in an external window, use the buttonBar command. Syntax: mainButtonBar position   where position is one of these options: top places the bar in its default location, above the Client main window. center places the bar below the main window (but above the search, tracing, and value displaying controls). bottom places the bar at the very bottom of the Client window.
Client menu:	File > Preferences > Main Button Bar
Introduced:	Build 57