Dear MOSES team,
Currently, hydrodynamic interaction between bodies is possible when the two "bodies" are modeled as a single body connected with weak structural elements. This is a bit inconvenient to model. How about adding something like outlined below:
&describe body body1
$ definition of first body
$
&describe body body2
$ definition of second body
$
&describe body body3
$ definition of third body
$
&describe system -multibody body1 body2
or
&describe body1 -interacts_with body2
Then, functions like &weight -compute or stability analyses are still possible and model edits are easier.