I'm working with the ProjectManager Plugin (by Kolja Schleich) and i've exausted myself trying to find the code that controles the Internal Link Form field. Does anyone out there in the magical world of the internet know where this code is located?
UPDATE: http://wordpress.org/extend/plugins/projectmanager/ is the plugin
UPDATE: The reason I wish to access the code is that it is currently displaying as a checkbox list of all of the fields in the linked table, I wish to modify it so that there is a dropdown option as an extra form field.