Power users expect full keyboard control.
Navigation:
- Arrow keys: Move selection
- Ctrl+Arrow: Jump to edge of data
- Home/End: Start/end of row
- Ctrl+Home: Go to A1
- Page Up/Down: Scroll by viewport
Editing:
- Enter: Commit and move down
- Tab: Commit and move right
- Escape: Cancel edit
- Delete: Clear cell
- Ctrl+C/V/X: Copy/paste/cut
Selection:
- Shift+Arrow: Extend selection
- Ctrl+A: Select all