Hi. Perhaps you can do a search on the word "object" for the available widget that may give you what you are looking for.
I currently leverage the Multiple Universal Device Poller chart as I have a UDP applied to multiple nodes. Using this widget, I created a simple page that displays this poller for % memory used, avg. latency, used cache % across each of the nodes that the poller is applied to. I believe you might be able to use the Multiple Object Chart or Custom Object Resource for this.