Create multiple relationships at once

When creating relationships between two Topics, there are often cases in which multiple relationships are valid and needed (ex. Owner/Subsidiary as well as Resident/Residence for someone who lives in the shop s/he owns, or Parent/Child and Supervisor/Subordinate in some cases). It would be nice if a dialog similar to the drag-n-drop dialog for creating relationships had multiple sections, with a "+" button for adding an additional relationship, which could be used multiple times.