Many thanks for your reply. I have uploaded the input data and design/contrasts that correspond to the command line below as requested. This command line (and variants thereof) is run for all designs/contrasts of interest and across the different DTI-metrics (dependent on input -i). The block.csv file includes information about the different sites, in response to our earlier correspondence about controlling for site effects (this prompted our use of PALM - happy to pass on our email exchange). I have also uploaded the two different output files I refer to in my previous query - one TFCE-FWE corrected and the other VOX-FWE corrected. 

It would be very useful to know if the command line above is appropriate. We are comparing two different groups (patients vs controls) so very simple design matrix (N= 300) with IQ and Age included as covariates of no interest.