Altova XMLSpy 2025 Professional Edition 

Superseded by AuthenticView.IsUndoEnabled

// ----- javascript sample -----

// instead of:

// if (Application.ActiveDocument.DocEditView.IsEditUndoEnabled)

//    Application.ActiveDocument.DocEditView.EditUndo();

// use now:

if (Application.ActiveDocument.AuthenticView.IsUndoEnabled)

   Application.ActiveDocument.AuthenticView.Undo();