You can reposition and reorganize the topics on your map by simply clicking and dragging one or more topics to a new location. In this way you can:
Reposition main topics
Move a subtopic to a different parent
Make a main topic into a subtopic
Make a subtopic into a main topic
To move or copy main topics and subtopics:
Select the topic(s) and drag them to a new position on the map or in outline view. A visual cue appears showing where the topic(s) will be added. In Outline View, pointing to the left half of the target topic creates a sibling (topic at the same level), while pointing to the right half creates a subtopic of the target.
Hints:
To copy, hold the CTRL key as you
drag and drop.
To create a floating topic hold down the Shift
key as you drag and drop.
If you want objects to snap to a grid during drag and drop, enable the
Snap to grid...
option in the Tools - Options
- Edit menu.
You can also use drag and drop to move and copy topics between maps that you are viewing simultaneously.
Normally, when you move a main topic MindManager automatically determines the best new location for it. The result is that the topic may not be located just where you want it - especially on maps with only a few main topics.
To position a topic freely you can do one of the following:
Drag the topic by its handle. 
Hold down the Alt key while you drag the topic to its new position.
Drag the topic using the right mouse button
Note: If you don't see any topic handles use the View - Show / Hide command to display Main Topic Handles.
Once you drop the topic at its new position its handle becomes black to show that it has been freely positioned. The topic will maintain this approximate position as you add to or edit your map but may shift slightly to avoid overlapping with other topics.
To return a single topic to its MindManager-determined position:
Right click and select Reset Position. MindManager re-determines an appropriate position for the topic and moves it there.
To quickly return all freely positioned topics to their MindManager-determined positions:
Click Edit - Reset All Topic Positions.
Floating topics can be moved freely anywhere on the map. (Hold the Shift key to the topic from becoming attached to another topic.)
If you drag a floating topic to a standard topic, it gets converted to a callout for that topic.
Callouts are attached to a specific topic, and can only be moved around the topic.
You can copy a callout, but the new callout will still be attached to the same topic.
Use the Cut or Copy then Paste as callout commands to copy or move a callout to a new topic.
You can also move and copy topics using the Cut, Copy and Paste commands. You can use this method to copy topics to another map, or to paste a topic as a callout.
Hint: There are several Format settings to control the topic spacing and the layout of map topics.