Specifies which multipole transitions to include in the calculations. The options are: only dipole ( , default), dipole and magnetic dipole ( ), dipole and quadrupole ( ).

The additional field `l2lp` can be used to calculate individual dipolar contributions
coming from
(
) and from
(
). Notice that in polarization dependent data there is also a
cross term, which is calculated only when
.

MULTIPOLE 2 0 *combine dipole and quadrupole transitions. MULTIPOLE 0 -1 *calculate dipolar L -> L-1 transitions