i have used the expression listcombine in 12 a long time ago. but i can not see a way to get it to work in 13 or in the last 12 version, tag screen, inplace editing, etc... maybe i am missing something.
i also noticed this thread in the 12 forum:
http://yabb.jriver.com/interact/index.php?topic=44825.0where this could be an option if it would work.
gab