If you have a place in the directory:
C:\IBM\Lotus\Domino\data\LotusQuickr\Unity
and you want to copy it to Unity2 then copy all the files over. NB I close down the server before doing this. Not sure if it is necessary, but best to stick with what works.
The files you need are:
search.ft
Contacts1.nsf
Main.nsf
Search.nsf
You can also make a copy of main.nsf if you are going to play around with a design.
After copying the directories, restart the server and then use the command:
load qptool register -p unity2
or the directory name.
I am not sure how this would affect doc links as the databases will be replicas, but web links will be different.