Troubleshooting Relume Export to Existing Webflow Site Issues

Hi all. This is probably a stupid question but I can't find an answer in Relumes resources. I've created a sitemap/wireframes in Relume and installed the Relume app in Webflow, but I can't export my Relume project into an existing Webflow site. The site uses Webflow's basic plan (Starter has a 2 page max), but when I try to export, Relume wants to create a new site and offers no option to import the project into an existing site. What am I doing wrong here?