If True, any writes to the driven field will be propagated back to the Value provided by the ParentValue. See write backs.
DefaultValue
T
Default value to use if the component can not find a compatible ParentValue.
Usage
Upon a change of parent, this component will search for ParentValue components on the slot's immediate parent that have a matching type and tag. If it can find such a component and link to it, it will drive the Target field based on the Value of the ParentValue. If it can not find such a component, it will use the DefaultValue value.