Navigator > Setup > Form Designer > Layout tab
When you select a component in the Design Window, the Component Editor shows the component name, properties and any associated events.
See Form Designer Component Palette for a list of available components.
Properties tab
Edit and set values for component properties. Properties associated with the selected component will appear, you can edit them to adjust their appearance and behaviour. See Form Designer Component Properties for properties common to all component types, and the individual Properties topic for the component type.
Click
Return to Parent (Shift+Esc) beside the Component Name to go to the component's parent component.
Events tab
Any events associated with the selected component are shown. You can set sub-routines that will be triggered by these events. See Form Designer Component Events.