So what you need is to choose the correct datasource for your listview which loads the contents.
I see that you have added the lisview. You should ideally double click on the place where it says Unknow in the above picture. That should open the ListView widgets properties.
In that popup you should see the Datasource tab in which you can select your desired entity.
Hope this is what you were asking. Good luck and let me know further if you are stuck so i can help.