Thanks it looks like
add_param_Groups could be of some help.
Is it possilble to give eg.
Assume we have nn.Sequential( L1,l2,l3,l4,l5)
i want three groups
(L1) ,(l2,l3,l4),(l5)
High level logic i can think about is we may need to build the param dictionary  for each layer groups and pass as param to add param groups.
Please help build code if you can
THanks in advance…