Dear Alfono,

Thank you for the response!

Unfortunately, I did not manage to follow the guidance. 

When I tried to import x,y,z coordinates from the .tal file, it did not load.
When I tried to 'Create new ROI(s) from MNI coordinates', it allowed me to create one ROI.

Maybe you could advise why these ways did not work?
Attached are my .tal file and screengrabs with the issues. I tried to create new ROIs after the Preprocessing step, thus the data was normalized.

Sorry to disturb you once again with this question!

Thank you in advance!