In iMindMap 11 Ultimate edition you can spread out larger maps over smaller, related maps called "Child Maps". This helps to stop your maps from becoming too large and cramped, and also allows you to develop your offshoot ideas on a fresh, clear canvas.
To do this:
Save your current map.
Click on the branch you want to be the central idea in your Child Map.
On the tool bar go to the Branch tab then click on "Child Mind Map".
This will open a new map that will link back to your original map.
In iMindMap 11 Ultimate edition, you can spread out larger maps over smaller, related maps called "Child Maps"
To do this:
Save your current map.
Click on the branch that you would like to be the central idea of your Child Map.
Then on the main toolbar go to Insert > then "Create Child Map".
This will open a new map that links back to your original mind map.