Welll, let's take this step by step. First let's see if your hotkeys are loaded. When you press "Show loaded hotkeys," you should get a little window that says "10 hotkeys are loaded" near the top. If you scroll down, somewhere in there you should see your renaming hotkey for Ctrl R, and it should contain the same instructions you typed in the file, except indented differently. Could you copy and paste that whole display from that little window so I can see? And then we'll go on to the next step till we find out what's wrong.