I want to use a Wave dashboard in a page layout, and I want to pass a parameter to the dashboard, to use as a filter. The documentation states "To filter by a dimension, be sure to create a list widget in the dashboard for the dimension."
So I go to my dashboard, I click on List. A List widget appears, but then what? I do not see how I can modify the list or add anything to it. The documentation doesn't tell how to do this.
I recently discovered the expert editor (Ctrl+E) for dashboards. I clicked a couple of times on the List icon, and moved the List widgets around. I clicked Save. I typed Ctrl-E but I can't find the List widgets in the JSON source. I return to the normal editor and the List widgets no longer exist. User friendly and intuitive are not the phrases that spring to mind.