CMS Layout for Workout Planer

Does anybody have experience using Webflow CMS for like a fitness planner app? The idea would be to have collection pages for warmups, exercises, mobility and a Workouts page to connect them all together using reference fields. But Webflow only allows 5 reference fields for one page, which is not enough. Any ideas on how I can work around that? Thanks in advance!

Here is my public share link: LINK
(how to access public share link)