How do I combine performance metrics?

If I have 3 servers, all putting out a performance metric and I graph it, I end up with 3 graphs overlayed (as expected).

Is there a way to total the metric across all 3 servers so I have a single figure graphed?

In real life terms I’m displaying current number of outgoing calls in Skype for Business, but it shows each frontend server separately, and I need to combine the figure across all of them and graph it.

 

Any way to do this in the json?

As far as I’m aware, this is not possible. Drop support a message and see if this is a feature they would implement. Failing that, you’ll need to create a collection rule to collect the three and put them together.

Thanks - that was my feeling that it would be the case. I’ll investigate building my own collection rule. Thanks!