Try playing around with this:
show-choices.xls (19.5 KB)
Basically, the ‘trick’ is to use some XForm black-magic, in the form of a true() choice-filter which forces the option list into an XForm nodeset, and then a join() to extract the labels from this nodeset into a string (I’m using a ', ’ separator above, but you can substitute a single space if you prefer).
