How to move topics freely?
Normally, XMind displays topics in mind map depending on the structure you're using. But there are still ways to move topics freely.
Press "Alt" key and move the main topic
If your mind map uses the default Map structure, this trick can help you free position the Main Topic. At present, this trick can only position the main topic. And on Mac OS X system, please use the Command key instead.
Press "Shift" key
The Shift key is an amazing key. Pressing it and moving the floating topic you can put the floating topic anywhere without linking to any other topics. Moving a topic linked with other topic, their links will be cancelled.