What happens when "Override existing user's settings" is selected in a dashboard?

When "Override existing user's settings" is selected in a dashboard, the current dashboard settings are replaced with the new configuration being applied. This means that any personalized settings, widgets, or information that the user has previously customized will be completely overwritten by the new settings. This option is particularly useful when you want to ensure that all users have a consistent view or when you need to deploy a standardized dashboard across multiple users or roles.

The other choices do not accurately reflect the functionality of the "Override existing user's settings" feature. For instance, adding additional dashboards would imply that the original settings remain unchanged, which is not the case. Retaining current dashboard settings directly contradicts the intent of an override action. Additionally, preventing any changes to the dashboard is not applicable because selecting this option explicitly includes a change to the existing configuration.