I have already posted this two years ago, but somehow it was not noticed or ignored.
I'm missing the tracking of the overall distance (yearly ridden distance) or ODO as it is called mostly, this is something all cycling computers have, but somehow it is missing in GB-580.
Currently only the total active distance is recorded (overall distance when measuring) and is hidden in the activity menu (not visible elsewhere).
It also should be possible to put both the active overall distance and complete riding distance (ODO) on one of the custom display pages for easy access.
Plus this data should be visible in the PC application when synchronized.