Hello Dashboards Team,
We recently became aware of this limitation which seems very fundamental.
We currently have a map with 14 layers in it. We would like to use one map (one AGOL item) but configure it with some layers off/on in the dashboard. Currently I have not found a way to do this using one map.
The apparent workaround is to have multiple different maps in your AGOL content then have those in your dashboard. This leads to a lot more overhead for admins to manage.
I'm proposing that the Dashboard team looks into a similar feature as ArcGIS StoryMaps. In ArcGIS StoryMaps their maps offer the ability to turn on/off layers. This allows users to have one map but visualized different ways.
Thank you for your time,
Amanda Huber