A Display toggle switch is present in the header of a Detached View displaying large tables (like i.e. in Flights, Airspace Data, ...)
This button switches between the Screen mode (set by default) to the
Print mode - simply click on it to change mode.
Screen Mode
The vertical scrolling only affects the data tables. This allows the query area and the table headers to be visible at all times, for an easier on-screen usage and reading.
This setting is however ill-suited for printing, since it only prints what is visible in the window - and in some cases only one of the frames (the header OR the table).
Print Mode
This mode is used when you want to keep the header and the data together in one piece - typically for sending the whole content of a page to a printer.
See how the scroll bar on the left of the image now encompasses the whole window: