Hi, Dan-
To add a bit to Daniel's description-- there are videos describing how to do this which will be added to the AFNI Academy YouTube channel (https://www.youtube.com/channel/UC40RiNZN7_dCuB6Lg7HJl1g) shortly.
At the moment, you can download them (the *.flv file videos play in "vlc", and hopefully in any other software you are using to watch) and the links for the videos are here:
.... showing the GUI-clicking way of doing that (recommended to start):
[
afni.nimh.nih.gov]
.... and the "driving" way of doing it (from the command line), once that makes sense:
[
afni.nimh.nih.gov]
... and the accompanying scripts are here:
[
afni.nimh.nih.gov]
[
afni.nimh.nih.gov]
--pt