Calender (JavaScript) [Can only see in preview] Template in Bootstrap Studio

I am designing a start up page for a cover band I am managing. Could anyone help me understand how to activate and allow the java script calendar template under the Book Us!!! page.

The website is, can't seem to figure out how to edit the java script in Bootstrap Studio. Also would would be needed to make it activate so visitors could claim events on that page and be notified to the database for me to retrieve and update other social sites.

This is my first time posting so please excuse me if I am doing this wrong... Just let me know.