Hello,
If it's per map then we can go to Edit > Map settings and make a mass change to the notifiers on that map. You can click the reset notifier button and make all of the devices on the map not use a notifier. When the time is ready, you can reapply them on the same window, but if you have multiple notifiers it could be time consuming.
There is also Edit > Server Settings > Notifier List > selecting the individual notifier will allow you schedule a window where no notifications can launch. This one might be too much work as well if you have lots of different notifiers.
I can create an ER asking for a snooze option that applies to notifers on the server and specific to maps. Otherwise, if you have any specifics let me know and I'll write it up based on that.
Thanks,
Steve
Intermapper Support