How to limit memberships presented on Membership Pro 2 register page

Hi, hope all is well.

I have a number of different memberships available on this site(arcarugby.com), and I am wondering how to limit the number of memberships that are presented on the register page. Currently, the page displays boxes to sign up for all membership options (see attached image) . I can't seem to find the content for this page anywhere, so do you happen to know if there is a way for me to only display signup boxes for specific membership options? Please let me know if I need to elaborate on anything.

Thanks!