Adxstudio Portal: How to filter an Entity List based on Entity Form

I have a webpage in which there are both an Entity Form and en Entity List.

The Entity Form appears on top of the Entity List, which is good.

But how would I filter the Entity List based on the Entity Form? Just like a subgrid, I would like the Entity List to show records related to the Entity Form. I can't use an actual Subgrid in the form because I want the records to be clickable.

If that helps, Entity Form is showing fields from Events (adx_event). And Entity List is showing a list of Sessions (adx_schedule).

Thanks!