I am trying to create a drill-down sankey diagram similar to the one posted on: codepen.io/team/amcharts/pen/mKvyVd So far, I achieved pretty much what I wanted but there is one key element that I want to add to the chart, of which I am not quite sure if it is possible.

In the diagram of above, you can click on the link between either A --> D or on B--> D to show sub-links based on the main link. Thus, it goes one level deeper. But is is also possible to show a level deeper based on both links? Now if you click on A-->D you get A1 --> D1, and (A2 + A3) -->D2. And if you click on B-->D you get B1 --> D1, and (B2 + B3 + B4) -->D2.

I want to be able to click on both links so all these sub-levels are shown in the diagram. So that the sub-links (A1 + B1) --> D1, and you get (A2 + A3 + B2 + B3+ B4) --> D2.

Is something like this possible?