Translations:Extension:HideSection/2/en

This extension hides sections hierarchically. That means if you hide a top level header, any headers below it are automatically hidden. Typically, the header will display a "show" or "hide" link next to the edit link, though this can be configured to display an image instead. Additionally, there is a "show all"/"hide all" button, either on the first header or next to the page title.