It reminds me of a feature I've always wanted, and even built manually a couple times, but never in a shareable way, which is to unravel a code path into a single script or source file.
I've want to be able to set something like a breakpoint and hit an "unravel" button and be left with a single file that shows every action that occurs leading up to that point. Ideally it would be runnable as a single script as well. This is essentially the view a step debugger gives you, but I want to see it all in a single file from start to finish rather than I. Multiple layers referencing multiple files.