Dear Freesurfer experts,,

I tried to use mri_label2vol with fill-ribbon option to covert the surface-based label of perirhinal cortex into the volume (an ROI in mgz file). However, when I typed "mri_label2vol --fill-ribbon --label lh.entorhinal_exvivo.thresh.label --o lh.entorhinal_exvivo.thresh.nii --identity" in the command line, an error popped up, saying "ERROR: Option --fill-ribbon unknown". Do you have any solution in order to make it work?