Extensions offer a few other different methods of administration. Your login to prosentient extensions should be the same as your admin login. .Admin.php is another useful admin page where you can see controlled vocabulary updates, make global changes and perform changes to the site itself. 

Going to metadata/ controlled vocab updates can allow you to update the names that read in different fields, and value sets, input fields you enter in submission sets. Change the text and then click ‘update authorities’ when you are done.