if (context == null) addImpactToWorkspace(impactCopy, (DefaultMutableTreeNode)findNode(impact).getParent());
  public ImpactComponent copyImpact(ImpactComponent impact, Object context) {    ImpactComponent impactCopy = impact.copy(this, context);    addImpactToWorkspace(impactCopy, (DefaultMutableTreeNode)context);    return impactCopy;  }