I need to convert a big number of scalar surface maps from fsaverage to one particular subject space. This means running mri_surf2surf command many times. For each execution the same transformation is calculated and then applied. Since estimating the transformation take a substantial amount of time I was wondering if I could calculate the transformation once and just apply it (which is a common thing in volumetric registration). I perused the website and the command line options, but I could not find anything. Is it possible to save and reuse surface transformations?

Best,

Chris