Editora 0.9.10. Archived, so links from that release keep working. Read the 0.18.5 page →
View: Split Editor — Side by Side
view.splitVertical Split the editor into side-by-side panes.
How to run it
Open the command palette (M-x in the Emacs keymap) and search for View: Split Editor — Side by Side, then press Enter. It also has a default keybinding:
| Emacs | C-x3 |
| VS Code | C-\ |