How to import other brain atlases to use as scouts

I did read up on FrSrf file formats last night (especially annot and surf), and what you tell me here helps clarify some things. I am now thinking that my best bet may be to try to obtain the original Yeo atlas, which hopefully I can then use to create matching surface+annot combinations for my individual subjects. I am told we have matching surface+annot combinations already, but I have not found them yet.

To clarify, should I get the “magic” number error when I try to import one of our local annot files? Or do I always have to first import a matching surface file first?

Thanks,
-Jeff