@Override
 public IStatus execute(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
   ColumnInfo source = getModel().getColumn(sourceColumnID);
   for (String cellKey : source.getCells().keySet()) {
     CellInfo cell = source.getCells().get(cellKey);
     if (cell != null) {
       destinationColumn.addCell(cellKey, new CellInfo(cell.getValue(), cell.getComment()));
     }
   }
   return redo(monitor, info);
 }