How can I delete a SpecHierarchy?
The Specification Editor and the Outline View allow entries to be deleted with the context menu (right-click -> Delete) or with the DEL key. Please note: This deletes only the SpecHierarchy, the corresponding SpecObject (if one was set) stays intact.
How do I create a ReqIF Project?
You don't need to: Any Eclipse project will do. This allows, amongst others, to easily integrate ProR with tools that require special project.