Allow custom event data to be configured as charts just like the default metrics.
I am recording data in custom events e.g.; duration an operation execution. I need a chart to see on an average how much an operation takes to execute across users/sessions/geography etc. I see no way to configure a chart based on my custom event data that can give me counts/average etc.
Are you recording duration as a custom metric? If so it should show up in the list of metrics when you edit a chart. If you're recording it as a custom property it is treated as a string so we won't do average etc calculations on it.