You can restrict the versions, hierarchies, and node types that users can view and select for a particular type of request.
Version Variable––Limits the selection of a version for request items in a request of a particular workflow model.
Hierarchy Group Property––Limits the hierarchies from which nodes can be selected for request items in a request for a particular workflow model.
Hierarchy Group––Required if a Hierarchy Group Property is specified.
Node Types––Limits the nodes that can be added as request items to a request of a particular workflow model.