It has been a while since I used the chart widget, but maybe you can try to do the following;
- Create a surrounding DataView with a context object. Make sure that there is an association between the context object (new NP object, I assume) and the ‘slice’ object you would like to click on.
- Add a nanoflow in which you set the association of the context object to the ‘slice’ object.
- Set the nanoflow as an on-click action in the chart settings.
As I mentioned; it has been a while since I used the widget myself. Hopefully, this guides you in the right direction.