listBoxObs.addItem(c.Standard());
listBoxObs.addItem(c.Standard_no());
listBoxObs.addItem(c.Standard_all());
listBoxObs.addItem(c.Only_amides_a());
listBoxObs.addItem(c.Only_amides());
listBoxObs.addItem(c.All_theoretic());
listBoxObs.addItem(c.All_non_hydro());
listBoxObs.setWidth("6em");
final Label observableAtomSetLabel = new Label(c.Observable_at());
pcTable.setWidget(rowIdxPcObserv, 0, observableAtomSetLabel);