I generated a graphml file with some topmost group nodes which should not be automatically resizes by yEd using Layout->Hierarchical. Therefore I added the property autoResize="false" to those group nodes.
While the layout looks very nice after automatic layout, the size of the topmost group nodes was resized and the position changed too.
How is it possible to leave the position and size of the topmost group node level untouched by the automatic hierarchical layout?