Abstract: A control panel provides controllers for setting the values of system settings. Each controller controls a subset of related system settings. Scheme objects are provided for encapsulating values of system settings for a controller. The current values of system settings controlled by a controller may be updated by applying the values held within a scheme. Grand schemes are provided for aggregating the system settings for multiple controllers. Thus, the system settings controlled by multiple controllers may be updated in a single transaction by applying a grand scheme to the control panel. Easily practiced approaches to applying schemes and grand schemes to the control panel are provided. Moreover, methods for easily creating and editing the contents of schemes and grand schemes are provided.