I could not copy a packed folder...
Easiest way I found was to highlight all the tracks contents I wanted to copy, select "Copy" - then open up the other song and hit "Paste" below the last track -- It then copied all the tracks and created the necessary tracks automatically - but there was 1 twist, and that is that if none of your tracks that your are copying start at measure 1 - then it will paste the earliest starting point to 1, thus loosing it's place in the time line. So I recorded a small silent track piece for a few measures starting at the very beginning (1) and included it with all the other tracks I wanted to copy over. Now that I had at least 1 track starting at 1, it knew where the START point was supposed to be.