I have a problem that there is a lot of free space left using mind map. For example, when I add subtopics 1,2,3,4 to topic1, topic2 goes lower and lower, thereby leaving free space. I would not like to use simple rectangles and arrows, because it is inconvenient. If the topic2 did not move when moving under the topics, it would be more convenient.
Please give an answer how to disable this movement.