How does one apply a new UAK (Update Access Key)?

I have a P8.
I am using HMC 9.

I used Systems, Action, Updates, View System Information and can see when
the UAK expires.
I went to ESS, "My entitled hardware", "UAK - View, Download and Request
Keys" at https://www.ibm.com/servers/eserver/ess/ProtectedServlet.wss and
requested a new key. It expires next June and gave me this long string as
the key.

So far so good.

Now, how do I actually apply this key?

....
Argh! I keep forgetting "View" as in "View System Properties" on the HMC
doesn't really mean just "view". It means view, update and otherwise muck
around in here.

So I opened up my HMC 9. Go into All Systems, select the system, Actions,
View System Properties, Capacity on Demand, CoD functions, Enter CoD code,
and paste that new code here.
I used Systems, Action, Updates, View System Information and can see when
the new UAK expires.

Just sharing in case anyone has to figure this out.

Rob Berendt