Editora 0.9.10. Archived, so links from that release keep working. Read the 0.17.0 page →
Edit: Mark Expression
edit.markSexp Select the balanced expression after the caret.
How to run it
Open the command palette (M-x in the Emacs keymap) and search for Edit: Mark Expression, then press Enter. It also has a default keybinding:
| Emacs | C-M-space |