For example, map the “lh.V1_exvivo.label” file from freesurfer/fsaverage folder to subject surface. This file actually has been transformed to subject surface, localized in the freesurfer output subject/label folder, but @SUMA_Make_Spec_FS skipped this file. How to transform this file as others by @SUMA_Make_Spec_FS.
And for another example, label files provided by literatures, which are in fsaverage surface, but not provided by freesurfer, how to transform this kind of rois to subject surface?
Do you already have the labels in an AFNI related format (niml.dset or gii)? You can use SurfToSurf to go from one surface space to another (e.g. FS Average to subject or back again). You can also transform that fsaverage space label to the standard label (std.141.*) and then map it to any surface.