Add Ability For Client 'Unavailability'

With the master schedules, it would help if you had somewhere on the schedule where let's say a family calls 2 months prior or whatever it is, and they say, I will be in town this day to this day, can you not have a caregiver those days. We also don't want to change the master schedule as it stays the same otherwise, it's just that one day or one week. Instead of us having to remember, the only other way is to publish those schedules out and then remove those days manually after published. Otherwise, when publishing master schedules, nothing stops us from publishing the day they don't want care. I think this could be beneficial, especiailly if you have a client that is only published a few weeks out at a time. If we were published greater than 3 months out, it wouldn't be a problem likely as I could just cancel the shift on the schedule. However, with summer and changing schedules, we aren't publishing longer than 4 weeks at time sadly!