afni.nimh.nih.gov

Is it possible to change the current directory and thereby the list of files to choose from in Underlay/Overlay after AFNI GUI has been opened? If I change the directory in terminal it doesn't auto-update in the GUI. Is the only option to open another GUI window from terminal after 'cd'-ing?

I searched a bit but didn't find the answer; apologies if this has already been covered! Thanks.