Groups of MeatAxe matrices are constructed using the usual Group
command.
Only very few functions are available for MeatAxe matrix groups.
For most of the applications one is interested in matrix algebras, e.g.,
matrix representations as computed by Operation when applied to an
algebra and a module. For a permutation representation of a group of
MeatAxe matrices, however, it is necessary to call Operation
with a group as first argument (see Functions for MeatAxe Matrix Groups).
GAP 3.4.4