This plugin displays a series index using a custom series-index Shortcode. This plugin is multi-site compatible and contains an inbuilt show/hide toggle. The shortcode can be used on posts and pages; the format of the index and other options are user configurable through an Admin page.
Two custom fields (Series and Series Position) need to be added to each post in the series; these fields are used for selecting the posts and ordering them when the index is displayed.
There is a full range of options to configure the plugin for use which can be set via an options page in the WordPress Admin panel.
The plugin is now available for download on WordPress.org.