A counter for trad climbing.
If you turn on "Merge with UKC" when the day is also in your UKC logbook, the two are merged
into one session: the time and note from here (UKC's note if you leave yours blank), and the trad
climbs from whichever has more. Sport and bouldering logged on UKC that day still count.
If you don't use the toggle, it counts anything on the same day from UKC logs as separate
sessions / climbs.