label = new Label(editArea, SWT.NONE);
label.setText(Messages.ColumnPortfolioTo);
ComboViewer comboTo = new ComboViewer(editArea, SWT.READ_ONLY);
comboTo.setContentProvider(ArrayContentProvider.getInstance());
comboTo.setInput(getModel().getClient().getActivePortfolios().toArray());
gdf.applyTo(comboTo.getControl());
final IViewerObservableValue observableTo = ViewersObservables.observeSingleSelection(comboTo);
// security
List<Security> securities = new ArrayList<Security>();
securities.addAll(ClientSnapshot.create(getModel().getClient(), Dates.today()).getJointPortfolio()