You can now cut out parts of a large map and create separate maps. Just select the top of the hierarchy you want to cut out, copy or cut it to the clipboard, then select File->New from Clipboard. Because each map has a unique URL on MindMup, once you save the new map, you can create a hyperlink in the old one to the new content for easy navigation.
Similarly, it is easy to join up multiple smaller maps into a larger map. Just copy the root nodes of smaller maps and paste them one by one into the central map.
Because we now store the clipboard contents in the local browser profile, there are two important limitations of this:
- both windows have to be using the same browser profile (so copy/paste between Firefox and Chrome will not work, but if you open two windows or two tabs using the same profile it should be OK)
- the size of what you can copy is limited by the local browser storage, which most browsers limit to about 5MB for a web site - so you won't be able to copy-paste huge images