I've just got a new licence for additional users and have tried installing the key through sac. I'm not sure if this is a bug or not but after clicking add licence and pasting the text in, the box dissapears and nothing happens, the new licence isn't listed. A new cumulative-1.lic file appeared in the LicenceKeys folder but I couldn't add new premium users.
To get it to work, I had to delete the original key and add the new one in which seems wrong to me and I must admit was a bit hairy when I did it, but it did work.
Is this a bug or an undocumented process?
Phill