I am trying to rotate selected circle of objects by 30 degrees using the API. My code looks like this - ``` var ids = api('getSelectedIds').split(','); api('rotate', {ids:ids, degree:30}); ``` The problem is that each object rotates around its own center. But I really need to rotate all of the selected objects around a common center. At the moment all the objects have 0,0 as the origin, so but it doesn't really help - rotating a circle by 30deg moves its center away from where it previously was.