Derive from this interface to package a custom code sequence when a Scene template is instantiated. ISceneTemplatePipeline is instantiated once when a template is instantiated, and is notified multiple times during the instantiation sequence.
| AfterTemplateInstantiation | An event called after the Scene template is instantiated, and while the new scene is still loaded. |
| BeforeTemplateInstantiation | An event called before the Scene template is instantiated. |
| IsValidTemplateForInstantiation | An event called before the New Scene dialog is displayed to determine whether this template is available in the dialog. |