How can I add a Relationship Description? Menu > Tools > Options > Clarion > Dictionary Diagram

Tags: #<Tag:0x00007f22549d09e0>

So in the Menu>Tools>Options>Clarion>Dictionary Diagram>Display Relationship Diagrams
Default: Unticked

This option appears to exist where I can add a description to relationship in the dct, so I wondered where or what I have to do to add this description.

Anyone know?