Than you so much for the answer. This is exactly what I wanted to do. Before, I had the 9June version so I was not able to see the new "Create surfaces" option, but I just downloaded the new version and followed all the steps that you just mentioned. It works! I was planning to do a source-localization analysis to compute then FC at the "global level" using ROIs of the AAL3 as scouts. The AAL3 has more ROIs compared to the volume atlas lpba40, so probably I will consider not only the scout Bothside Cerebellar Lobe, but also other regions as well. Is there a particular reason why is it preferable to create the surfaces from the volume atlas lpba40 or not?
Thank you in advance!