public class ShowPropertiesViewFeature extends AbstractCustomFeature {
   private static final String VIEW_ID = "org.eclipse.ui.views.PropertySheet"; //$NON-NLS-1$

   public ShowPropertiesViewFeature(IFeatureProvider fp) {
      super(fp);
   }

   @Override
   public boolean canExecute(ICustomContext context) {
      return true;
   }

   @Override
   public String getName() {
      return "Show Properties View";
   }

   @Override
   public String getImageId() {
      return ImageProvider.VIEW_PROPERTIES;
   }

   @Override
   public void execute(ICustomContext context) {
      if (PlatformUI.isWorkbenchRunning()) {
         IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
         if (window != null) {
            IWorkbenchPage page = window.getActivePage();
            if (page != null) {
               try {
                  page.showView(VIEW_ID);
               } catch (PartInitException e) {
                  e.printStackTrace();
               }
            }
         }
      }
   }

   @Override
   public boolean hasDoneChanges() {
      return false;
   }
}

private ICustomFeature showPropertiesViewFeature;

@Override
public ICustomFeature[] getCustomFeatures(ICustomContext context) {
   Collection<ICustomFeature> features = new ArrayList<ICustomFeature>();

   features.add(getShowPropertiesFeature());

   // others...

   return features.toArray(new ICustomFeature[features.size()]);
}

private ICustomFeature getShowPropertiesFeature() {
   if (showPropertiesViewFeature == null) {
      showPropertiesViewFeature = new ShowPropertiesViewFeature(this);
   }
   return showPropertiesViewFeature;
}