True, this is not exported.
The export is performed by the do_export function (of course). Look for the 'Fetch data' comment. In order to add two more columns for the peaks, a second RRDs::fetch call would have to be made with MAX rather than AVERAGE and this dataset simultaneously processed to provide the data for the two new columns.
If you feel confident about perling then this sould not be too difficult.
I'll add it to the list of 2.15 work since it is relatively simple and of obvious benefit.
(update: I have a working beta of this now (it really was a simple procedure!). There are a few issues with making it completely flexible over all possible configurations, though, that are being worked on. Let me know if you need a copy of 2.15b4)
Steve
_________________ Steve Shipway UNIX Systems, ITSS, University of Auckland, NZ Woe unto them that rise up early in the morning... -- Isaiah 5:11
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