João Sousa wrote:  I tried google charts for awhile and we eventually switched to high charts.  There is an addin in the forge.  It may take a little bit of tweaking but highcharts does support gantt and here is a full jsfiddle example: https://jsfiddle.net/gh/get/jquery/1.7.2/highslide-software/highcharts.com/tree/master/samples/highcharts/studies/xrange-series/
 

João Sousa wrote:  No problem - also one thing that it took me awhile to realize is that the google charts were somewhat limited in the way you have to pass them an object but with the highcharts you pass it a long text string(s) instead.  Of course from the forge item I have done a good bit of editing to the javascript for the chart itself, but the nice thing with jsfiddle is that you can edit the code behind the graph and see the changes it makes without having to go through the OutSystems layer so its faster and easier.  Then when you get the graph looking the way you want it to on jsfiddle its just a matter of copying and pasting the code back into the forge highcharts widget.  Good luck!