  We present a new lens model for the $z=0.396$ galaxy cluster MACS
J0416.1$-$2403 based on a previously known set of 77 spectroscopically
confirmed, multiply imaged galaxies plus an additional set of 42 candidate
multiply imaged galaxies from past HST and new JWST data. The new galaxies lack
spectroscopic redshifts but have geometric and/or photometric redshift
estimates that are presented here. The new model predicts magnifications and
time delays for all multiple images. The full set of constraints totals 343,
constituting the largest sample of multiple images lensed by a single cluster
to date. Caustic-crossing galaxies lensed by this cluster are especially
interesting. Some of these galaxies show transient events, most of which are
interpreted as micro-lensing of stars at cosmological distances. These
caustic-crossing arcs are expected to show similar events in future, deeper
JWST observations. We provide time delay and magnification models for all these
arcs. The time delays and the magnifications for different arcs are generally
anti-correlated, as expected from $N$-body simulations.
  In the major sub-halos of the cluster, the dark-matter mass from our lens
model correlates well with the observed number of globular clusters. This
confirms earlier results, derived at lower redshifts, which suggest that
globular clusters can be used as powerful mass proxies for the halo masses when
lensing constraints are scarce or not available.
