The plugin uses the WordPress “enqueue” methods, which means you can control dependencies (when registering scripts), improve site performance by putting styles in the head and scripts in the footer, and eliminate loading multiple copies of the same library (jQuery, I’m looking at you).
Enqueue Registered Styles and Scripts (by Handle)
Use the Postscript meta box (Edit Post screen) to enqueue registered styles and scripts (listed by handle in checkboxes).
Enqueue Unregistered Styles, Scripts, and Data Files (by URL)
For each post, you can also enqueue unregistered files, by entering URLs in the meta box text fields for:
* 1 CSS stylesheet.
Add Post and Body Classes
And for each post, you can add:
* A classname, to the HTML
<body< tag (requires
body_class() in theme).
* A classname, to
class="post" list (inserted by WordPress, requires
post_class() in theme).
Settings and Security
The Settings screen lets you control which user-roles and post-types display the Postscript meta box and which script/style handles users are allowed to enqueue.
Edit Post screen Postscript meta box
Settings Page: User Roles, Post Types, URls, and Classes
Settings Page: Tables of Added Scripts and Styles
Settings Page: Remove Scripts and Styles