Hierarchical Selection for the Auto Complete List Validation
Hierarchical selection is the ability to list selectable field values in the form of a hierarchy or tree. If the field values can be defined hierarchically, the selectable field values can be presented to the user in a hierarchical list. For example, when a resource pool (ResourcePool_1a) is created, a parent resource pool can be set. If a parent resource pool (ResourcePool_1) is configured to ResoucePool_1a, in the hierarchical selection, Resource_Pool_1a appears as a child to ResourcePool_1.
Hierarchical selection must be enabled by the system administrator and is only available for the Auto Complete List validation.