WinStudio
Use this dialog box to create, copy, edit, or delete component classes or property class extensions. The list includes all component classes or all property class extensions that are stored in the forms database as global objects.
To add a component class or property class extension, click New.
To copy, edit, or delete a a component class or property class extension, select the one you want in the list. Then click the appropriate button.
About Inheritance from IDOs, Component Classes, and Property Class Extensions
Understanding Component Classes
Understanding Property Class Extensions