https://developers.arcgis.com/javascript/latest/sample-code/widgets-layerlist-actions/
LayerList widget with actions | Sample | ArcGIS Maps SDK for JavaScript
LayerList widget with actions
layerlistwidgetactionssamplearcgis
https://emxsys.github.io/assets/java/master/javadoc/javadoc/gov/nasa/worldwind/layers/LayerList.html
LayerList (NASA World Wind)
layerlistnasaworldwind