CCL: freeze internal coordinates in G03

Hi, I want to freeze two monomers in a dimer structure during a geometry optimization. ModRedundant provides several ways to freeze bond length, angle and dihedral angles. Since I want to freeze any internal geometry optimization within the monomer and am only interested in their relative orientation in the dimer, I wonder if there are more concise ways to deal with this besides using B ** F, A***F and D***F for every atom. Thanks.