Has anyone figured out how to create custom popups in WAB? My end goal is to trigger a custom attribute table widget to display multiple selected attributes, instead of the arrow button in the popup. But in the process of trying to accomplish this, I have not been able to even figure out how the popup works. I think it has something to do with the LayerInfos folder in jimu.js, but all configuration changing that I do seems to have no affect.
I think there is a similar widget in the flex api? is that right?