How about having the Action ID show up in the Action when you open it?
From the Actions grid list, if I open one to read the notes and review the latest, there is no Action ID on that page?? I have to go back to the grid list to find the Action ID, or, I have to click Edit, then click Save. Seems minor unless you need to get the latest on several actions. In that case, it is an awful lot of extra clicking around