How to use the Key Safe which is located tot he right of the main door
Pull open the key safe flap to reveal the dials
Set the dials to the correct code
Press the finger and thumb buttons, one on each side
The key safe will spring open
To avoid key loss, the recommended procedure is
Open the key safe and unlock the door
Immediately return the key, close the safe and scramble the code
Repeat the procedure when locking up.
As well as seriously inconveniencing other users, replacement keys are VERY expensive, you will be charged.