[mb-users] How to add 2nd disc to newly created release?

Sorry if this is a patently newbie question:

I've just registered with MusicBrainz, read a lot of documentation, and 
added my first release which is a 3 CD album.  I created a release 
group, a release, and a tracklist of the 1st CD.

Later when I returned to add tracklists for the 2nd and 3rd CDs, I could 
not find the release.  Searching for it says "no such release".

The release edit under my profile says "expires in 6 days".  Does that 
mean I have to wait 6 days before I can add the 2nd and 3rd discs?  
(Assuming the edit gets a vote?)

Johann