The Placeholder plug-in is used to mark placeholder containers when designing library objects for Viz Trio compositing. A placeholder container is available as a parent to other compositing objects in the scene tree.
Note: This plug-in is located in: Built Ins -> Container plug-ins -> Control
Sort Order: Integral sorting order identifier (lower number is sorted first).
Description: A description of the tab field or editable object. This is used as a description for the items when used in the control clients.