CKEditor custom var for instance

Dear Forum watchers,

i want to add a custom var to the CKEditor instance.
Based on this custom var i want to display CKEditor Templates.
Later i need this information todo a query to the database to create a internal CMS link.

But first: Different templates for every specific user.

This instance is create with JS:

            <script type="text/javascript">
                CKEDITOR.replace( 'pageContent',
                {
                       toolbar : 'Full'
                });
            </script>

And i want something like this:

            <script type="text/javascript">
                CKEDITOR.replace( 'pageContent',
                {
                       toolbar : 'Full',
                       requestor: 'user1'                       
                });
            </script>

Is this possible? And how do i retrieve this var within the config file.

config.requestor?

i hope you can help me. Other solutions to set the requestor of the CKEditor are also welcome.

with kind regards

Chartmen