[Freesurfer] Visualizing specific cortical parcels in Desikan Killiany atlas

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Dear experts,

I have a basic visualization question. I would like to create a surface brain figure with specific cortical parcels colored. Similar to https://secure-web.cisco.com/1DryTPj2WrD-LULa8TF6HVh2xwKTLAaWDFvIpAUrs4z6O2V... but not with ALL parcels in the atlas selected.

I know that I can go into a subject folder and load this freeview -f surf/lh.pial:annot=aparc.annot in order to see the entire Desikan Killiany atlas. However, I would like to select 4-5 rois.

What's the best way to do this? It won't be related to any results and doesn't need to be from a particular subject's brain (can also be fsaverage). It's purely to highlight some cortical parcels for visualisation purposes.

Thanks, Ellen