Editora 0.9.10. Archived, so links from that release keep working. Read the 0.18.3 page →
Edit: Set Mark
edit.setMark Drop the selection mark; movement then extends the selection.
How to run it
Open the command palette (M-x in the Emacs keymap) and search for Edit: Set Mark, then press Enter. It also has a default keybinding:
| Emacs | C-space |