1. A concise explanation of the problem you’re experiencing.
I’d like to import multiple dataSources into Cesium from different KML files. Then allow the user to manipulate the appearance of each file’s data.
There are examples with imageryProviders, but not dataSources.
2. A minimal code example. If you’ve found a bug, this helps us reproduce and repair it.
Import KML as in this sandcaslte example: https://cesiumjs.org/Cesium/Build/Apps/Sandcastle/?src=Export%20KML.html
Then have a menu to manipulate the properties of the dataSource such as alpha and saturation-
Examples with imagery: