Opener
Details and Options

- Opener is effectively a special case of Toggler.
- Opener is often used with PaneSelector. »
- Opener has the same options as Toggler.
- Opener[] is equivalent to Opener[False].
-
AutoAction False whether to change the toggler automatically when the mouse is over it BaselinePosition Automatic alignment relative to surrounding text BaseStyle {} base style specifications for the displayed toggler ContentPadding True whether to shrink the margins tightly around the contents Enabled Automatic whether the toggler is enabled or grayed out ImageMargins 0 margins around the image of the displayed toggler ImageSize All the overall image size of the displayed toggler
List of all options

Examples
open allclose allScope (1)
Use Opener with PaneSelector:
Options (8)
AutoAction (2)
By default the opener changes only when you click it:
By setting AutoAction, the opener toggles as the mouse moves over the opener area:
Enabled (2)
ImageMargins (1)
Include margins around the Opener:
Applications (1)
Use Opener with PaneSelector for hiding and exposing additional controls:
Properties & Relations (2)
Wolfram Research (2007), Opener, Wolfram Language function, https://reference.wolfram.com/language/ref/Opener.html.
Text
Wolfram Research (2007), Opener, Wolfram Language function, https://reference.wolfram.com/language/ref/Opener.html.
CMS
Wolfram Language. 2007. "Opener." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/Opener.html.
APA
Wolfram Language. (2007). Opener. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/Opener.html