We've got a feature request open that would include the action group title in the project field for those actions - that would at least make the items in question more understandable when they showed up in your lists. If that would help you, email the
support ninjas and let them know you'd like to be attached to that request.
If you do email, we can also file a feature request for the "show the list header instead of the actions" behavior, but I'm not sure how many other folks will want to use groups that way. Most folks seem happy with the "do the steps, then check off the list itself" behavior that the app currently has...
If you do want to see a single action in your project, doing something similar to Lucas' suggestion is probably the way to go. Treat the action as "send this email" and include the list of items you want to mention in that email in the note field...