This instance of SharePoint is SharePoint 2013 Server. I work with SharePoint Designer 2013.
In this scenario, I have two lists: Cases and Notes. I want to link each Note to a Case. There can be many notes per case, but only one case per note.
I have a Display Item page, and below the details of the Case I want to include a web part that shows the Notes that are linked to this Case. There is a "lookup" column in the Notes list that connects the two.
I can't figure out the right way to use filter, etc. to make what I want happen.