ListStabChain( G )
ListStabChain returns a list of stabilizer records of the stabilizer
chain of the permutation group G, i.e., the result is a list l such
that l[i] is the i-th stabilizer G^{(i)}. The records in that
list are identical to the records of the stabilizer chain. Thus changes
made in a record l[i] are simultaneously done in the stabilizer
chain (see Identical Records).
GAP 3.4.4