StarTeam Server's Custom Component Builder is used to create custom components analogous with StarTeam's own internal components, such as the File, Change Request, Task, or Topic. The Custom Component Builder in the StarTeam Server walks you through creating the component, its properties and values and finally, deploying your component in a single click.
When you are finished creating your custom component, use the Layout Designer to lay out the properties that you defined in the XML file or via the Customize menu in the StarTeam Cross-Platform Client. The layout form you create in the Layout Designer is stored as a file in the Starflow Extensions project, and read by the StarTeam Cross-Platform Client when it shows a custom property editor.