Adding a user filter of dynamic list page repeater items using multiref CMS fields

Question:
How do I get ‘dynamic list page user filter by multiref field’ working? On connecting to CMS the multiref fields don’t appear in the list of fields available for the filter to work on.

Product:
Wix Studio

What are you trying to achieve:
I have a main ‘productions’ CMS table with the items showing in a dynamic list page.

On that list page I wish to have users filter (using a dropdown or checklist) by category and / or type, both of which are multiref fields related to separate ‘categories’ and ‘types’ CMS tables.

What have you already tried:
When I set up the filter and connect it to a dataset, the multiref fields are not available to me. I have used a tags field in the CMS instead (to test), and can set up that user filter easily. I’ve seen it working in a Wix Studio tutorial, but they didn’t explain it (see below).

Additional information:
I’ve seen the ‘user filter by multiref field’ in the following Wix Studio tutorial at 25:12, link to video and screenshot below. But in the tutorial they do not demonstrate that filter, but a simple tag filter.

Any help much appreciated as it’s a core element in the website I’m trying to build. Many thanks.

This might help

Note: In the drop-down, the reference field itself is grayed-out and displays the name of the collection it references. The fields in the referenced collection are indented beneath the reference field.

Thanks for the response @Dan_Suhr. Unfortunately, where I’m adding a filter, the multiref fields don’t even show up in the list of available options, and in my list those greyed out aren’t selectable.

Screenshots below of the multiref field in the main CMS table, and of the filter I’m wanting to add and the options I get for connnection. Still in the early stages of building out the website.

Any other thoughts most welcome as this is critical functionality and I’ve seen it done, so wanting to work out where I’m going wrong. :slightly_smiling_face:

Second image