e/Disclosure widget

Information
has gloss	eng: A disclosure widget or expander is a graphical user interface element (widget) that is used to show or hide a collection of "child" widgets in a specific area of the interface. The widget hides non-essential settings or information and thus makes the dialog less cluttered.
lexicalization	eng: disclosure widget
instance of	e/GUI widget

Media
media:img	Expander.png