Adding a final task to a cycling UM suite

We re running u-db898 entailing a run with nudging in between 15 monthly cycles (NRUN + 14 CRUNs)

I have changed the initial cycle R1 to add some new tasks we need, but I also need to be able to add a closing task to just the last cycle. My development suite is /home/n02/n02/mjmn02/roses/obase-db898

I’m not sure how to add this final task to the final cycle.
Maybe I can set a new graph just for the final cycle,
at the end of each cycle have a task that checks if we are at the end of the run

I’d welcome guidance as to how best to do this please
Kind regards

Hi Mike

Please see: