So there is nothing I can do to import the MapID's??? I have hundreds I would have to reassign!
It's worth noting that when you use the RoboHelp Edit Map IDs dialog to map topics, what you are actually doing is to modify the contents of a small text file that stores the association between the topic and the ID number. To my knowledge, nothing whatsoever is changed in the topic itself.
So if you take that topic and import it into a different project, how is the destination project supposed to be aware of the mapping?
Have you tried importing the Map file into the project? Perhaps that's your answer.
And if your topic structure is the same, you can also overwrite the *.ali file in the project. That will restore the link between map numbers and topics.