First let me say that I love this plugin. It's awesome!
The only issue that I have is in reguards to it's permissions. I've just installed a fresh WordPress install and activate your plugin. I want to provide it to my sites "Contributors" as a way for them too quickly add content via the TinyMCE buttons. The problem is, those users that are assigned the "Contributor" level can't see any of the buttons. But they can see the "Shortcodes" sidebar area. They also have access to the "Add New Shortcode".
What I would like to know is if there is a way to removed the access to the admin area of the "Shortcodes" so they can't go messing around with it and still allow them access to the buttons created in the TinyMCE editor when they are creating a new post?