Create Multiauthor_plugin

The idea is to create a new dashboard post-type (which I did), a submenu called settings (which I did) and 6 author shortcodes (which I did). The concept is that a user can specific a post as multi-author and than assign each author there own shortcode.
   What I think needs to be done:
   1. Fancy-up the shortcodes into a class and have the class only apply under a multi-author post. I am not sure how to do that
2. Add functionality to the settings page whereas the user types in someones name and it automatically assigns that person an author shortcode that triggers when the author brackets his/her name. I think this needs to be done in Java but I am not sure.