Editora 0.16.0. Archived, so links from that release keep working. Read the 0.18.5 page →
View: Unfold All Except Caret
view.unfoldAllExcept Unfold every collapsed region except the ones containing the caret.
How to run it
Open the command palette (M-x in the Emacs keymap) and search for View: Unfold All Except Caret, then press Enter. It has no default keybinding, but you can bind one in Settings → Keymaps.