Right non we have two options: (acknowledge & close) in the end of escalation steps.
This is good idea to have additional option what allow escalate alert to another group's.
Will this resolve your problem with overconfiguration of calendar?
Feature Request is created. link
Escalate alert to another group - Yes please !!! Solve a lot of our issues.
Although we also need a global calendar - as people are in more than one group (by area of expertise).
Thanks for the reply.
I would still like to see an easier way to update several months worth of on-call rotation data. Either uploading a pre-formatted file, or (my preferred solution) with a "default" on-call start -> end time. If Alert Center knew that the on-call should change every Monday at 12:00am, and I simply had to provide the list of name in the rotation, that would be wonderful.