http://www.keyboard-layout-editor.com/#/gists/1d3a53dbff4ec23c2ccb529c8483dda7
18-key numeric keypad layout for macOS.
- = key on Row 1
- 1u + key on Row 3
- Holding 0 activates Fn layer
- Esc on Clear / Num Lock
- Backspace on Enter
- Tab on +
- Space on −
- 10-key nav cluster:
- Arrow keys
- Del Home End Page Up Page Down
- No access to Insert key
- Additional math characters:
- multiplication sign: × on *
- percent sign: % on 5
- left parenthesis: ( on =
- right parenthesis ) on /
- 12 from SA Nuclear Data
- 4 from SA Pulse