Project Predecessor and Successor Drill-through - Recursive relationships?

Hello! I have a simple problem in theory, that turns out to be beyond my expertise in reality.

This involves project data. I have a table called "Projects" with three columns, "Project ID", "Predecessor ID", and "Successor ID". Predecessors are just old projects, and Successors are future projects. So, if Project A has Successor B, that means A must be completed before B. Some projects can be tied to the same Predecessor, or Successor, etc. There is of course much more data in this table, project completion stats and all that, but I'm trying to keep it simple. Example:

Here's the goal: to have a working Drill-Through where you can right-click either a Predecessor or a Successor, and then see their own respective Predecessors/Successors. The problem: this needs to be repeatable, so I can keep Drilling Through the next table of Project/Pred/Successor, then again Drill Through into either those Predecessor or Successors, as far "up" or "down" the list of projects as I want. Meaning, I somehow have to get Power BI to use both Predecessor ID and Successor ID as a Project ID when I Drill Through. I think.

I tried making separate tables with for Predecessors or Successors, then relating them back to the original Project table, but that didn't seem to work. I'm lost at how to achieve this repeatably. Any ideas are much appreciated!