What does "Copy Index" command do?

Copy Index places a text export of the index onto the clipboard. Paste it into a plain text editor to see the output. An example use case is to email other users with the list of action items allocated after a meeting.

I don't think that the contents of the index can be lost independently of the map and its icons. It is derived from the map.

It is time to be cruel to be kind ;) From the experiences you are having, you are into largely uncharted waters with maps on this scale and with this density of icons. That's not to say it shouldn't work, because it should. But in practice I don't think there are going to be any quick fixes that Mindjet can make. Given that the map is not going to be accessible as a native map to anyone except you, then presumably you are headed towards a linear export. What role do the icons play in this, and are icons the only way to achieve it? Could you get a similar linear export (presumably with the creation of cross references or indexes) by (say) using topic hyperlinks or relationships? Or could you create a script that pre-processes the map and directly generates the cross-references or indexes as topics with text notes, rather than relying on the export tool? Just a thought - don't shoot the messenger :)

Thanks for the feedback Nick. I decided on the use of the icons because they (visually) concisely represent attributes of the topic to which they are associated. The text equivalent of that can be rather wordy. If I were even willing to replace the icons with text, the physical size of my map would balloon to unimagined levels, considering some of these topics have as many as 30 icons (not many, but some) and the resulting text description would look, literally, like a paragraph of text added to each topic.

The interactive filtering mechanism of this map is as import, if not more, than the final document output. I am going to be sharing this with someone else who is not familiar with the content, and will rely heavily on the Power Filter capability to get to the content she needs.

Ugh.