Silly thing to help explore Ultima maps

space: Toggle cell Shift: Toggle hidden/secret Arrow keys: Move cursor
Numpad: Pan R: Rotate cursor D: Toggle door style
1: Add door (must be next to cell)
2: Add unseen cell
3: Add level up
4: Add level down
5: Add fence (must be next to cell)
Enter: Add label
c: Toggle background color (for chrome key)

Data (copy/paste to save/load, delete all and press import to clear):