You shouldn't need to create a new status set, just edit the settings of the status set in use, and in the column for "Automatically set when not marked" - select one of the status values to be used when the unmarked process is triggered.
Attendance (plugin)
Auto based on Activity Complete has error message
Оваа дискусија е заклучена, и повеќе неможе да се пишуваат одговори.