For MITK Cardiac, the user needs to place two kinds of points. Anterior and Posterior Commissure points.

These are set with a pointset using the statemachine "PressMoveReleaseAndPointSetting"

User should be able to place anterior points by SHIFT+LeftMouseButtonClick and posterior poiints by SHIFT+RightMouseButton click.

So we have to add a new action to this statemachine.