I just tried doing that for Sampletank 4 (a few times actually) and unfortunately it did not work. I submitted a ticket yesterday for the original issue (which was that the SYN 1 libraries would not unlock in SYN 2), but after doing what lupis said, I got it to work this morning. So basically all is good in Syntronik 1 and 2, but Sampletank 4 still shows things locked.