Thanks, that's where I was already looking. And the fact that it doesn't consume a license when a call is not being recorded is exactly what makes it hard to forecast ... I can see the momentary usage, but unless I'm watching all the time I can't easily see what the maximum usage is.
For reference in case anyone else is looking for the answer to this, I went through our re-seller and Mitel came back saying that there's no way to do this in the present version. You can see the momentary use, but there's no way to easily find the maximum use to see how close you actually are to your limit.
They mentioned the new version coming later this year, so I'm hoping it might include something for this...