Benefit plan change

I think I know the answer already, but figured I would check with this group hoping for a better answer.

We need to change the DBA associated with a plan ID, actually need to change multiple.  As a example, the DBA setup for AD&D plan category (plan ID), which is assigned to 10 different benefit groups we want to use a different DBA for AD&D.

And no of course these benefit plans are not end dating this calendar year end.

The current DBAs have been out there for years, so obviously we do  not want to lose that history.