compute group/group and hybrid many-body pair styles

On behalf of King, I am rephrasing part of his question and reposting it.

Is it possible to use compute group/group if some (but not all) of the
sub-pair-styles (in a hybrid pair-style) are many-body styles (like
tersoff)? I read the doc page, but it does not clarify the issue of
hybrid pair_styles.

King is using these input pair style settings.

pair_style hybrid tersoff morse 4
pair_coeff * * tersoff SiC_1994.tersoff C C C C
pair_coeff 1 2 morse 3.68 1.165 3.25
pair_coeff 2 4 morse 3.68 1.165 3.25
pair_coeff 1 4 morse 3.68 1.165 3.25

King wants to compute the energy (or force) between:
  the atoms of type 1 (a.k.a. "group DLC") and
  the atoms of type 2 (a.k.a. "group sub")
using "compute group/group"

In principle, I don't see why it should not work (but the ability to
do this might not have been implemented in LAMMPS).

King, have you tried using compute group/group?
If so, King, please post the "compute group/group" command from your
input script, and tell us what the error message was.