It would be nice to be able to see where a variable is being used. Right now I have to open every file and then ctrl+F them all.
There should be another scope option in the find window, for searching the entire project.
Use the “Search…” item in the Search menu (or Ctrl-H).
Ah, thanks! That’s rather hidden, didn’t see it in the menu.
Would be nice if it was in the Cmd+F menu as well 
Yes, that’s something that definitely needs to be adressed at some point.