Sometimes you have to go back to local history many times on the same file to find some changes and maybe do something with them. Each time, you have to locate the Version or Action which you are interested it. Sometimes it's not easy to find it. When you do find it, it would be great if you could somehow mark it or label it so that it is easy to find again the next time. E.g. Add a label with text "New version copied" or whatever you want to a particular Action or Version.