My example

        private void Init()
        {
            manager = new ButtonManager();
            manager.Register(new MyButton(bChartSettings, ViewTypes.Chart, PropertyTypes.IsVisible));
            manager.Register(new MyButton(bLanguage, ViewTypes.Detail | ViewTypes.Grid, PropertyTypes.IsVisible));
            manager.Register(new MyButton(bTransform, ViewTypes.Chart, PropertyTypes.IsEnabled));
            manager.Register(new MyButton(bExport, ViewTypes.Detail, PropertyTypes.IsEnabled));
        }

    	enum ViewTypes { Grid, Chart, Detail }
    	enum PropertyTypes { IsEnabled, IsVisible }