Esri plans to implement group layers for ArcGIS Online feature services in the future, but until then, here is an alternate method to clean-up content in a web app by configuring Group Layer Lists to organize layers in Web AppBuilder.
Hoops Tracker is a Esri Story Map that displays information for the 2018 Class 1A and 2A Boys Basketball Tournaments in separate web mapping applications, paired with a view of IHSA's interactive ScoreZone web page and other IHSA links.
Most of us are familiar with this idea of dashboards. A quick overview of a set of data, system or project with supporting charts, dials or graphs that emphasize particular points about the data or view. There are some ESRI tools that have been around such as the Operations Dashboard, or the analysis-focused Insights. And now as of the June 2017 update, Web AppBuilder now has built-in functions for quickly creating configurable, informative dashboards on top of your web GIS.
The Web Map and Widgets are the foundation of creating apps in Web AppBuilder (WAB), but there are customizations you can make to add a finishing touch to your app and make it unique.
Our travels here at Cloudpoint take us to many places throughout the state of Illinois (as well as many other states). In the spirit of our connections to the Prairie State, as well as our varied tastes in music, here is a Story Map that focuses on a selected set of songs that contain Illinois place names in their titles-The Prairie State Playlist.
The Prairie State Playlist is constructed using Esri's Story Map Journal template. Maps of each location comprise the "Main Stage", while information and a link to the song are in the "Side Panel." The maps for the Prairie State Playlist were created in ArcGIS Online as webmaps, and then converted to apps using Web AppBuilder, which allows for a better interface and the inclusion of widgets such as a Legend, Basemap Gallery, etc. The webmaps alone can also be included as content in the Story Map, as well as videos, images, and web pages.
Please browse the Prairie State Playlist and enjoy the music tour through the Land of Lincoln. Along the way, you might pick up some information about Bob Dylan, Tornadoes, and an EPA Superfund site.