In the Add HD Track dialog, with the Songname selection button only the first occurance of a soname is presented for selection. We have studied this and there is a "Catch 22" going on here. The way our query is written, we cannot present multiple identical songnames.
We are expecting to rewrite the whole Add HD Track structure and incorporate the fields into the main screen at the bottom right. At the same time, we hope to remove this limitation, but cannot make any promises yet.
Pcgumshoe, all songs appear in the Song Book and yes, you can enter the BookID to access any song. I believe the Brand selection button also allows accessing any song.