Variable Queries should also grab context from the query itself

Right now, variable queries can only really pull information from the object that it's inside. However, I think that pulling from information like the Query Title could also make queries really helpful.

USE CASE: Let's say I'm taking a class, and I want to make a query for each chapter of this class. I set the course property to the course page it's in. However, if I want each chapter query to be different for each chapter, I included a text property "chapter" to make each query for each chapter. If I could automatically set this filter equal to the query title, I could just change the query title to the chapter title instead of manually having to do it each time.