As I had to do it today the following improvements for scheduled outages:
I have a site moving into a new facility, hence all nodes are down for a certain period.
. So I had to go and search for all nodes in that site and add them to a scheduled outage.
It would be great to have a "Critical Path"(sorry, didn't find a better wording) for outages, so if you add an outage of 10.1.4-8.x all devices in that network are not whatever in the outage period.
Secondly I would prefer to have the "all nodes" button far away from the add button, as I had to start over three times today, because i clicked on "all nodes".