Could it be possible to add a feature where files could be dragged into the map in Maps Manager and that would add a topicref element in the map.
- User has both Project and DITA Maps Manager views open
- User drags a file into the map in the Maps Manager
- A new topicref is created, with a relative URL as the href attribute.
Note that this feature is different from http://www.oxygenxml.com/forum/topic3239.html, that is about dragging a map into the Maps view and have the map open in the tab.