Display Multi reference field in a collection

Hi guys,

I’m struggling with multi-reference field.

In the instruction video: CMS & dynamic content | Webflow University
I can see that “muti reference field” is available in the Collecting List Settings.

However on my site I don’t simply see that option.

What I want to do is to display multiple categories associated with each content item as a text field.

What I’m doing wrong here?

Thank you in advance.


Here is my public share link: Webflow - Aarini Website