Bases: I don't find `file.backlinks` attribute for filtering

What I’m trying to do

I want to show the backlinks to/of certain notes in a base and use the base editor to select the property file.backlinks. But this does property not show up in the select list.

Things I have tried

Looked in the bases reference and found the property. Read about it in some posts here in th forum.

In Properties, when you start typing “backlinks”, you should see it and be able to select it:

In Filter, it’s not in the drop-down list. You have to click the code icon to toggle the Advanced filter and type in your filter: