Usage example: [asa tpl="flat_box_horizontal"]ASIN[/asa]
Or set it as the new defaut template in the options.
Usage example: [asa tpl="flat_box_vertical"]ASIN[/asa]
Now you can combine the options "items" and type="random"
what had not worked so well in the past. ;-)
Example to show one random collection item:
[asa_collection tpl="my_template" items=1 type="random"]my_collection[/asa_collection]