Custom event, dhx_event_move and mouse pointer

Look at this snippet:

When starting to drag en event it jumps down to mouse cursor position. Is it possible to make it stay relative to mouse cursor?


this is due to the current implementation of drag and drop, since the initially moving is only allowed by dragging the header of an event - so the mouse position defines a start date of an event.
Right now there is no good way to change id. You can lookup the source codes of the original drag and drop implementation and check what can be modified or overriden