This content is for v4.x (Alpha). Switch to the Stable version.
Add chart method present in slide component or you can replace the chart using shape component. Base supported version for this type of chart is office 2016

Basic Code Sample
Section titled βBasic Code SampleβpowerPoint.AddSlide(PresentationConstants.SlideLayoutType.BLANK) .AddChart(data, new WaterfallChartSetting<G.PresentationSetting>());
WaterfallChartSetting<G.PresentationSetting>
Options
Section titled βWaterfallChartSetting<G.PresentationSetting> OptionsβAt this moment waterfall supports base setting fromChartSetting
future updates will get updated below.