Editora 0.10.0. Archived, so links from that release keep working. Read the 0.18.0 page →
Application: Set Author Name…
app.setAuthorName Set the author name used by file templates.
How to run it
Open the command palette (M-x in the Emacs keymap) and search for Application: Set Author Name…, then press Enter. It has no default keybinding, but you can bind one in Settings → Keymaps.