Simply to keep track of group affiliations and their frequency to whatever site its on. I run DSD+ intermittently on various P25T sites (using the single dongle method). I was hoping it I could have DSD write that data to a txt log. This would be easier to sort out, rather than looking through the entire 'GROUPS FILE'. This data could be converted to a CSV or whatever file for easy analysis. So in theory, I could adjust the max age to what ever time frame and when DSD is shut down it would produce a txt log. But it would start a new log when I started it up again.