If you have two analytical panels that have a common edge (there is no gap between them), and if you move one panel trying to create a gap between them, the moved panel drags the other panel and lengthens its dimension. This behavior is the same for analytical members also. This behavior is not friendly if you try to copy an element right next to the other, then move one of them to create a gap between them.
We should have an option to choose if we want to drag the other connected analytical element if one of them is moved!