How does Bonita map default generated variables

Ok, so I don't if this has been answered before (in that case I'd appreciate a link to that post in particular), but I like to know how does Bonita map variables autogenerated when you export and reimport a default page (b.e. User Case List that's offered by default).

What I want is to modify that view to add some case manipulation functions using the API, and what I see is that the variable that display the cases is right here, and this is the content. As you can see it's an empty JSON, but there has to be another part inside the form or it's components that maps the data with the API to obtain the cases and I'd like to know where in order to do some modifications.

I'll leave the default resource in any case someone who might be reading can't find it, but you can also get it from a default Bonita. I'm currently working with 2022.1 Community Edition.