API Call: JSON Path Name isn't able to choose

I want to get data for ListView from API Call but I have difficults with shoosing JSON Path Name

1. I created Endpoint GEThttps://x8ki-letl-twmt.n7.xano.io/api:Mu5h81gj/job (without auth and query parameters). It works

   

2. For ListView I set backend query

3. I tried to set variable for List Title but JSON Path Name doesn't display fields of JSON Response. Only Custom is available.

   

   
   

   What do I do wrong?