In a recent ESRI webinar for Emergency Management solutions I was happy to learn about the Web App Builder Situational Awareness widget, which includes the ability to take a Snapshot in time of your data during an event.
Having struggled with trying to get the Web App Builder Time Slider widget to step properly (as I've noticed many on Geonet have), it would be great if there was a way to take snapshots during an event and then feed those snapshots directly into the Time Slider. This would (hopefully) eliminate the struggle to match up the slider with the data.