Editora 0.18.3. Archived, so links from that release keep working. Read the 0.18.5 page →
View: Toggle Save as Administrator
view.toggleAdminSave Allow saving non-writable files (e.g. under /etc) by elevating through the OS auth agent (Linux & macOS).
How to run it
Open the command palette (M-x in the Emacs keymap) and search for View: Toggle Save as Administrator, then press Enter. It has no default keybinding, but you can bind one in Settings → Keymaps.