We would like to be able to specify the lastMinutes variable in the Live widgets on an individual basis.
Some of our sites keep their own stats keep their own live user stats and we would like our custom Piwik dashboard to show similar numbers (about 14 minutes). But this then overrides the live stats for our other sites which we compare to Google Analytics (about 8 minutes).
Currently it appears this can only be globally set in the config file.