I could be wrong but I don't think there is a view that incorporates interface resources from multiple nodes. Feature request!
You could get there in a round a bout way with a map, but you wouldn't have your graphs. It would be more of a 10,000 ft view of X number of routers with the Y number of serial interfaces in a good/warning/critical LED light state. Graphs would be a click or two away.
Message was edited by: Bahlkris