I would like to use fsfast to analyze retinotopic data that I collected. I used the traditional 4 stimulus types (clockwise, counterclockwise, expanding, and contracting), but rather than collect each one in its own run, I took data from one long run that contained all the stimuli. Based on the logs, I can associate the pulse number/dicom file number with a stimulus type. However, when I tried to just move the sets of dicom files into sub-directories, which I set up as run directories, freesurfer still saw them as belonging to one run (which I assume is taken from meta-data). My question is, how can I best split up these files so that I can subject them to the FsFastIndividualRetinotopyAnalysis process?