Hi,
You don't need to use the walls, but the following minimal settings are required...
Note, you can extend the 'two' theme in the themes section if you wish, if you want to add a custom font / layout / colour scheme.
start_at = treasure_room
redescribe = auto_beta
start_theme = two
treasure_room = your_treasure_room
game_settings {
rollback_enabled = true
imply_header_from_location_id = true
}
The source code for 'two' is built into the editor, see the folder icon at the top (you'll need to clear down the editor if you want to load sample code directly using this method). Remember to take a local backup of your code regularly as your code is not stored on the server.
Regards,
Chris