Jesse Lansdown and John Bamberg (of the CMSC), together with Akihide Hanaki, have just released their first version of a GAP package that deals with homogeneous coherent configurations. The title of the package is AssociationSchemes, since most of the interesting homogeneous coherent configurations are association schemes, and has perhaps a more widely known definite meaning to the general mathematical public. For more, go to:
Website: http://www.jesselansdown.com/AssociationSchemes/
Repository: https://github.com/jesselansdown/AssociationSchemes