Sometimes it can be very helpful to see connections between things in a literal sense. Prime example: Spec graph view.
This can be very helpful to illuminate the connections to things, and having a similar representation inside an AppSheet app as a chart could be useful in some instances.
I could see something where you add tables to a list (like selecting the columns that should be included in a chart), and we would see some sort of hierarchy chart showing how things are structured.
As always, thanks for considering!