The Wide scroll plugin allows you to include a "wide" section into your posts by enclosing it in:
This could contain a piece particularly wide content, such as a map, a table, etc...
When it is displayed, it will be scrollable left and right. There will also be visual clues to show the user he can scroll as well as buttons that can be tapped to move left or right.
This plugin can only be used with post types or comments where it is possible to insert some HTML.
Therefore it is disabled by default for collections such as Manuals and Forums.