Order Manager

Order Manager allows you sort posts and terms belonging to any post type or any taxonomy,
as well as posts tagged with a specific term.

Options

Enable order manager for all posts/terms

This will add a new page to the WordPress menu under the associated post type.
It provides you with a straightforward drag-and-drop interface to organize your
posts or terms. If the post type or taxonomy supports a hierarchy, it will also
let you easily reassign items to different parents by dragging them just below
the intended parent.

This adds a new 'orderby' value when using get_terms(): 'menu_order'.

Enable post order manager for each term

Taxonomies with this option enabled will now offer a post order interface on
each term’s edit screen, allowing you to set a unique order for posts in that
term.

This adds a new 'orderby' value when using get_posts(): 'term_order'.

Note: this unique order will only take effect when listing posts belonging to
a specific term that uses this.

Override order on get_posts()/get_terms()

This will cause all queries for posts/terms of that type to use the custom
order by default, rather than by date/name. In the case of a query for posts
belonging to a term with post-sorting enabled, it will use that order by default.