In a DMS that is configured for Swarming, how do use GetAlarmDetails in Client Test?

The previous AlarmID and ElementID are now marked as deprecated, but I don't know what I need to fill in to get alarm details.
You are supposed to fill in the "Trees" property.
However, this is not so easy to do via ClientTest as there some conversions happening in the background to keep backwards compatibility with non-swarming systems.
This is not a problem via any code or script (eg automation) but is a bit difficult with the built in editor here.
For quick testing via ClientTest you can still fill in the old fields: DataMinerID, ElementID & AlarmIDs.
Note tough that for swarming systems you must now also include the ElementID or the call with return an exception.
For any scripting it's recommended to fill in the Trees property directly instead of any of the above fields.
And finally the last note: DataMinerID here has to be the left part that you find in the properties window:

Happy swarming!