fr33bh

This plugins adds an button in the post editor that allows you to easily split post by pages and also adds link to pages in the post automaticly.

Easy Multiple Pages

This plugins adds an button in the post editor that allows you to easily split post by pages and also adds link to pages in the post automaticly.

grosbouff

bbPress Topic Sections allows to split the topic content field into several sections, allowing to setup more detailled topic forums; eg. for having an ads forum.
The content of the topic sections is just added to the post content (when saving a post); and extracted when editing/displaying it. 
Which means that it gracefully degrades if you choose at some point to disable the plugin !
In the Administration Panel, there will be a new box “Topic Sections” on the forums pages, that works like regular post tags. 
If you add some topics sections there, it will add new section fields when creating / editing a topic under this forum.
Under Forums > Topic Sections, you can edit each of your topic sections to add a description (that will be shown on the forms) and setup 
several parameters for the section :
<ul>
<li>section required (validation not yet implemented)</li>
<li>maximum characters allowed (validation not yet implemented)</li>
<li>WYSIWYG editor enabled</li>
</ul>
Built with a lot of hooks so you can customize it easily !

bbPress Topic Sections

bbPress Topic Sections allows to split the topic content field into several sections.

Easy Multiple Pages vs bbPress Topic Sections