This is the same question that can be found under dashboard ideas:
https://community.esri.com/t5/arcgis-dashboards-ideas/allow-quot-no-data-on-opening-of-dashboard-quo...
Working in 10.8.1 Enterprise/Portal - this is killing our application. We are looking at lots of flow rate data for specific points where pipes have meters.
The charts try to display massive amounts of data for ALL SITES by default, and it's just an awful user experience. Has there been any progress in allowing charts to be blank until a feature is selected? Please yes!?