Not that I know of. It’s just a part of the workflow that you need to rename the files before import.
Renaming the files at the finder level is always going to mean having to re-import into FCPX as the renaming you do inside the app is virtual – so if you bring in a file from the finder called ClipA and rename it in X to MyClip, FCPX is still connecting that to a file in the finder called ClipA. If you rename it in the finder to MyClip, FCPX will still be looking for ClipA in the finder and you’ll have a missing file, with no way to relink it other than to re-import.
I guess there’s a possibility that an app may may exist to do that via XML but I personally would be very upset if I renamed a file inside FCPX and it changed them in the finder too – any media shared across multiple libraries would suddenly become unlinked and it’d be a nightmare.
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Jeff Kirkland | Video Producer & Cinematographer
Hobart, Tasmania | Twitter: @jeffkirkland