Profiles
A profile is a collection of settings that optimize your device based on how you are using it. For example, the settings and views are different when you are using the device when sailing than when powerboating or fishing. The default data fields and default pages change with each profile.
When you are using a profile and you change settings such as data fields or units of measurement, the changes are saved automatically as part of the profile.
NOTE: Only the profiles you create save new settings. Preset device profiles return to default settings when you change profiles.