This type of node can be used to include code in the Events part that should be copied to panels defined using a layout object.
Some standard events are copied always, such as the Start, Refresh, and Load events. Using this node’s children the developer may specify that other events must be copied as well.
In all cases the events are not copied textually, some transformations are performed on it. More information on these transformations can be found on the Event (Dynamic Layout Definition).