Not currently, at least using the built-in visualizations. (You can do
whatever you like using the /event/get and /metric/get endpoints, and
then writing custom visualizations in D3.) I do plan on making the
built-in visualizations more expressive in the coming months.
> How can I make a dashboard persistent?
It should already be persistent, if you book mark the random URL it
generates when you first create the dashboard. There's no currently a
list of created dashboards (though there is a pull request you can
look at to add one, or you can use MongoDB to query the list of
dashboards). That's something I'd like to add as well.
Mike