What I mean by that is, you can only add one extension type to all pages on your website. It's does not let you pick and choose what ones to apply it too either. And it does not play nice with many other plugins that create subpages or posts. It will not disable from within the plugin's own GUI interface and when you disable it in any way you MUST restore your database. If you do want to try this plugin out, make sure you have a recent backup of the database and and custom files!