I'm looking for a feature like Eclipse's Link with Editor. Basically, I want whatever file I'm editing to be shown in its place in the file tree.
Just right-click anywhere in the file's view and press "Reveal in Sidebar."
To make a key-binding, go to Preferences > Key Bindings-User and add:
{ "keys": ["ctrl+shift+r"], "command": "reveal_in_side_bar" }
From here.