Dynamic movement of objects
To move an object, select it and then click within the object’s border and hold down the left mouse button while moving the mouse. During movement, the shape of the object appears as dotted lines to help with repositioning.
To drop the object at its new location, release the mouse button. During movement, the shape of the object appears as dotted lines to help with repositioning.
If you have selected Guides when moving in Tools > Options > OpenOffice.org Draw > View, then during movement, dotted lines appear, to help with repositioning.