Oops sorry - I started to ask that question yesterday and then came back and started to ask another. I accidentally got two questions mixed up. That's what happens when you post half asleep. My bad.
So... the first ask was:
I would like to generate a list of all the alerts that have been defined (not triggered) for a group and/or subgroup. I have looked through the interface and searched the forum, but if there is an obvious way, or a post that addresses it, I have yet to come across it.
The second was actually:
How do I get a report to show both current and historical alerts. And looking at the docs again it occurs to me what I actually want is "Only Include Active Alerts" to not be selected - except I do not see that option anywhere.