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The UML team has created a WidgetAction that can be used to move a node around a scene via keystrokes. The nice thing about this action is that it uses the same provider and strategy as the MoveAction. Therefore the behavior between the mouse move and the keyboard movement is very similar. In fact when you use the AlignWIthMoveStrategy and Provider you will get the alignment lines when moving the node around the screen. Well at least when you use continuous moving. Continuous moving occurs when you hold down the Ctrl-<Arrow> keys down. The source code is at: http://hg.netbeans.org/uml-main/file/00b8e517bc60/uml.drawingarea/src/org/netbeans/modules/uml/drawingarea/actions/MoveNodeKeyAction.java
This action is needed to support A11Y issues.