Alarm Volume as an action

[agreen]

Is your feature request related to a problem? Please describe.
I've setup a script that resets DND, all speaker volumes, and would like to set alarm volumes. As of right now, I have to do this device by device, as separate actions. I'd rather have one action that I call and pass multiple entities/devices to like I am able to do with the rest of the actions.

Describe the solution you'd like
An action that can receive multiple entities and allow me to set alarm volume on all of those entities at once.

Describe alternatives you've considered
I've created individual line items for each speaker/hub where I set the alarm volume.

Additional context
I also have to manually enter the alarm value instead of being able to use a slider like I can with the other volume controls.