Making premium work

Hi,

I recently purchased SiteOrigin premium and am trying to find out how to get it set up on my site. I have updated the license on siteorigin’s billing manager, but am unable to find out what the top of this means by plugin (and where I need to go): https://siteorigin.com/premium-documentation/install-siteorigin-premium/updating-siteorigin-premium/

Any ideas?

Thanks,
Saluki

The page I need help with: [log in to see the link]