Dear FreeSurfer list,
Greetings!

a newbie to freesurfer.
-- would like to overlay tracking group results (Sum from all subjects)-(from FSL ) in the inflated lh & rh. --

- it works with one region  (hope it's correct), with following command, where, -fthresh ?? means it shows 50 % threshold based on intensity / only voxels which are overlaid by atleast half of the subjects ??

>tksurfer #Sub_ID lh inflated -annot aparc.annot  -ov 1.nii  -ovreg register.dat   -fthresh 0.3 -fmid 0.3 -fslope 1

- How I can overlay multiple regions, in specific colours, with 50% thr. ? , 

Thank you :)
Vin