Use Netflow Analyser to trend and report on usage of an ISP data cap?

Use Netflow Analyser to trend and report on usage of an ISP data cap?

I am a new user of Netflow Analyser Professional, and am looking for a way to report, or display the monthly use of an ISP data cap (perhaps as a line graph over the month), preferably with an alert indicating a higher rate of use than expected at any point in the month.   Is this possible?

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