I’ve tried that. Set it to 29.97 in the custom settings. I’ll get anything BUT that when I actually bring it into FCP. Item properties for the clip in FCP show it as 25 fps, sometimes 8 fps but never 29.97.
as a work around, I’ve been successful bringing the export from keynote into after effects, then rendering it out for the settings I need in FCP. kind of a backwards approach, but at least I can actually get something done.
interestingly enough, the keynote export that shows up as 25 fps in FCP shows up as 30 fps in After Effects. go figure.