Paste some text into Opus to create the normal "Clipboard Text.txt" file... do it again to create the next "Clipboard Text (1).txt" file.
Now, try to rename "Clipboard Text (1).txt" to strip off the " (1)" suffix. The new rename error dialog with the options to handle the conflict let you use the right arrow key to move from 'Retry' to 'Skip' but then stop there. You can't continue on to the 'Replace' button or even go back to 'Skip' button. I guess the normal key to move the focus is the TAB key which works fine. Just found it odd that the arrow works to move to the 'Skip' button but the nstops working. Seems to be related to the 'Skip' button being a drop down selection button? If that's the way it's supposed to work, ok... just seems weird.