On the patients front screen there are 4 arrow buttons which can help you navigate through your patient database.

The double grey arrow pointing left 

Clicking this button will return you to the first blank patient record. You would use this if you wanted to clear the screen of any patient details without locking i-Clarity.

The double grey arrow pointing right

Clicking this button you will navigate to the last patient record that was created.

The single grey arrows allow you to flick through the i-Clarity patient records in order of ID.