Open source is just that, *open*. No one pays for this stuff except from their "own" time. If you really want nice graphics, rewrite the routine yourself and contribute.
Or, take the date to a spreadsheet program and do it yourself with a program more suited to the task. Please, don't ask Nessus developers to devote too much time in a thing for which there are better suited tools. Consolidate your logs/scans/reports and do the analysis elsewhere :-)
Javi
PS: BTW, that's something that would be simplified by providing a database back-end for Nessus and that _does_ need some help, (hint, hint).
