All the device objects i.e., Physical Core, Virtual Core and Core Objects could be moved by dragging them inside device view. A Physical Core cannot be dragged beyond Device border. Similarly Virtual cores cannot be dragged beyond its parent Physical core. Before moving any object, its parent object has to be resized so the object would fit in to that size. Below figure shows, the device objects that are resized and dragged.
After moving the cores, if any of the core overlaps with the other, then the cores position would be reset to its initial position.