Map Keys and Key Reference Links
To use a Key Reference link in a topic, you have to manually enter in the keys="" into the map like this:
<topicref href="GUID-ae29861e-c03c-41b5-a290-71060f0528cd.dita" keys="TestingNotes" type="concept"></topicref>
If you edit the map using the cross-reference menu icon, the keys are defined with a keydef, like this:
<topicref href="GUID-2dfc8826-1b96-4fc7-9e0c-3b112a1a760a.dita" type="concept">
<keydef keys="TestingNested"></keydef>
</topicref>
Only the first option results in the key appearing in the Key Reference selection drop-down when inserting a xref link into a topic. Why? Why does XML Editor not insert the keys definition into the map correctly so that it'll work? What is the purpose of this menu option relative to the maps?
