On the latest Explorer for ArcGIS version, 17.1.1, the control of turning layers on/off is now much more difficult if the users want to turn off the entire Group Layer (headings). ESRI should allow the developers a way to show all layers or collapse as a default option for the App. User should be able to turn on/off by the heading only layer toggle, instead of having to scroll through many layers to turn on/off an entire group of layers. This functionality might be great for some users being able to control each individual layers, but it seems to very cumbersome for our field users. This worked better for our users in version 17.1.0 and the previous version we were using.