Edit different information in CMS collection pages

Oh sorry, this is my first time on the forum but here it is:

https://preview.webflow.com/preview/fresh-project-172f45?utm_medium=preview_link&utm_source=dashboard&utm_content=fresh-project-172f45&preview=aade9172446dcd20eb3d2f85eabf1940&mode=preview

and yes, I have reviewed all the CMS related tutorials and I’m still having troubles.