Editora 0.9.10. Archived, so links from that release keep working. Read the 0.18.5 page →
Edit: Align Regexp…
edit.alignRegexp Pad the selection's lines with spaces so a regular expression lines up in a column.
How to run it
Open the command palette (M-x in the Emacs keymap) and search for Edit: Align Regexp…, then press Enter. It has no default keybinding, but you can bind one in Settings → Keymaps.