It was probably a mistake of some kind but it seems that your post got “flagged” for some reason. If we click on it, though, we can see that you provided two images showing how to use the “Data: execute an action on a set of rows” action, just what I was thinking of too.
But I also see now that @Jonathan_S is interested in a different approach.
Oh, now it seems to be visible again – hopefully to everyone, but made just to me because I clicked on it. ? ? ?
By the way, I can sympathize with @Jonathan_S’s interest in wanting something simpler. I’ve made lots of actions like this but the fact that you have to combine two actions that have to be edited separately is rather troublesome to deal with. I’m not quite sure what is needed but something that is simpler and easier for the app creator to implement would certainly be welcome. So, here’s my vote.