To move multiple concepts on the map at the same time, hold down the SHIFT key and drag your cursor while holding down the left mouse button over the concepts you wish to move.

Selected concepts and labeled relationships are highlighted with the dashed line and you can easily move them to other side of your map (pic. 1)

You can also delete everything that is selected by pressing the DEL key.

If you click somewhere else on your map, the selection will be canceled.

pic. 1