You cannot move a child requirement to another location in the Requirement Explorer view without moving its parent requirement. All child requirements move with the parent.
To move a requirement artifact, drag it to a new location within the Requirement Explorer view.
The requirement artifact is assigned to the new location. If Rational® RequisitePro® is open, you must refresh the project to synchronize the changes made in the integration. To refresh a project in RequisitePro, right-click the project and click Refresh. If refreshing the project does not update the view as expected, force it to refresh by closing the project and opening it again.