Any changes you make will not immediately be available to your Little Green Buttons. This will allow you to make adjustments without directly influencing behaviour.
The Configuration menu item will display a warning icon next to it, indicating there are changes waiting to be published.
Click the Configuration menu item, and click Publish now to make your changes available to the Little Green Button.
These changes will be automatically implemented within 24 hours, but you can always help move things along by Forcing a configuration update.