Functionality issue, even in example.

[alexut]

It seems that this has a functionality issue that renders it unusable for my use scenario:

If you have several depth elements and you try to move them back and forth, it will only allow you to move the last element with a certain depth. So If I have a scenario like the attached printscreen, it will only allow me to move element number 3, and not 1 and 2.

Is this the way it should work?