Scenario:   

There are various types of visuals in Power BI that we can use to create a beautiful report to get business insights from data. However, sometimes a visual may not be able to satisfy some certain requirements. If it is an open-sourced visual, you may have a choice to modify its code to meet your specific requirement. In this article, I will take Gantt 2.2.3 chart as an example.  

A customer recently used Gantt 2.2.3 charts in Power BI Desktop and the customer noticed that the maximum number of its tooltips was 3. When trying to put more fields in it, it shows yellow lines and it doesn't seem to allow any more fields to be added to it. Below I will explore how to overcome this limitation for this visual.