In short, I'd like to add a panel with a summary table in the ArcGIS Online Dashboard, but it does not appear that there is an option for that. Has anyone done something similar?
To get more in detail, I have a street center-line file where each street segment is coded with the type of on-street bicycle facility (bike lane, cycle track, Bike Boulevard, etc). The interlines are also coded with the municipality the street is located in. I'd like to have a panel that summarizes the mileage of each bicycle facility by multiplicity. Ideally the user would select a municipality from a menu and the panel would then display the bike facility summary. If need be, I could configure a separate panel with a filter for each municipality, but I'd like to avoid setting up 30 different panels. Either way though, I do not see an option for adding a summary table in the Dashboard.