General Location Categories
The simple option to give your location, plus any disabilities.
You can encode your altitude up to 9999km above sea level, down to 9999km below sea level.
In a Building
When you are in a building, enter the floor number up to the 500th floor
Enter ‘0’ if you are on the ground floor.
Lower levels and structures underground. Enter the sub-level number up to 500 floors below ground.