The scrolling mode is used to determine your adjusted maximum dive time for a specific planned depth. In this mode, computers automatically scroll through a list of depths and their associated dive time.

You should always consult with the scrolling mode before starting a dive to ensure that you've offgassed enough nitrogen to safely complete a planned repetitive dive. Computers update this information as you offgas more nitrogen, so if the computer determines that you cannot complete your planned dive, extend your surface interval until you can complete your desired dive profile.