Dear Freesurfer experts,

I have a project where I would like to compute volumes of the olfactory bulb. I understand olfactory bulb is currently not in the freesurfer atlases, so I would need to manually trace it for me to get the volume measures. Given that olfactory bulb appears easier to be seen on T2 scans, I am considering using T2 images for this purpose, but I also plan on obtaining high resolution T1 for reconstruction purposes. It may also be of my interest to try to automate this segmentation for future usage.

How would I go about this process using FreeSurfer?