How to changing the redirection in "Become Expert" button

If a logged-in user is viewing their job post on a single job page, the "Become Expert" button will direct logged-in user/already a member to the "adding new expert" page. I don't want this type of logged-in member to be able to add/edit/update/delete any expert pages before their new signup to become a expert member. How to modify this button to go to the Membership Lists (/membership) page or any other different page/link outside the J&E plugin? Please advice.