Happy New Year to you. This week we are going to add the year 2017 to all our 170 calendars we have. Doing this manually is a process of a lot of time. Each calendar will take a few minutes. So, this should be done automatically in one go.
We only use the availability for days, we do not use hours. So, how can we speed things up to add 2017 as available for all calendars in one go. This should not be that difficult as it is only updating some tables in mySQL.