When the mouse is over the appropriate location, the Layout tab displays as a darkened yellow tile. Release the mouse to drop the component. You can only drop components into appropriate drop positions, as determined by the component type.
Based on the type of component you add, Page Designer indicates what actions are required next. The Messages tab displays a red or yellow badge indicating the number of messages you need to address.
The following example shows a new Interactive Report region with an error message indicating that a SQL statement is required.