Robert,
Not sure if this is the best place for this but I was curious if you could help on a customizing a widget that seems it should be simple. Or if this needs to be a completely new widget. We are trying to customize the ESRI walk-through for the ListView widget that I see you have worked on before. However we are needing to use it to group attributes values say City and on click filter and zoom to those values from the list. This functionality is currently available in Operations Dashboard and the upcoming Experience Builder however we have a need to use it with our current WAB Dev deployment. I have the values grouped using
query.outFields = [this.config.titleField];
query.returnDistinctValues = true;
on lines 51 of the widget.js from your fix here
https://community.esri.com/thread/198771-list-view-custom-widget-for-web-app-builder
but this did not seem to work correctly as the onclick stopped working as intended.
any help is appreciated, your work and documentation to widget development is phenomenal thank you for all you do.