Scroll Viewport Development Placeholders Current: Collection PDF Download PDF Download page Collection. Current page All pages Collection With this placeholder, you can access the collection of a viewport.The root viewport is the viewport whose Path is configured as a viewport collection.The member viewports are all viewports with the same domain as the root viewport and whose path extends the path of the root viewport.MethodsNameTypeDescription$viewport.collection.membersList<Viewport>The member viewports of the collection.$viewport.collection.rootViewportThe root viewport of the collection. ×