Editora 0.11.0. Archived, so links from that release keep working. Read the 0.18.3 page →
Edit: Open Rectangle
edit.openRectangle Insert blanks, shifting the text inside the rectangle to the right.
How to run it
Open the command palette (M-x in the Emacs keymap) and search for Edit: Open Rectangle, then press Enter. It also has a default keybinding:
| Emacs | C-xro |