Editora 0.11.0. Archived, so links from that release keep working. Read the 0.17.0 page →
File: Save as Administrator
file.saveAsAdmin Save the current file to a location you lack write permission for, via the OS authentication prompt (Linux & macOS).
How to run it
Open the command palette (M-x in the Emacs keymap) and search for File: Save as Administrator, then press Enter. It has no default keybinding, but you can bind one in Settings → Keymaps.