Hi,
Yes you can display and play sets.
All you need to do is to set the “track” parameter in the shortcode to be the URL of your set.
For example, if my SoundCloud set has the URL “http://soundcloud.com/my_sc_username/sets/my-set-1”, then the shortcode will be as follows:
[soundcloud_ultimate track=http://soundcloud.com/my_sc_username/sets/my-set-1]
I hope that helps you.
I forgot to add that if you are doing the above and getting an error then it most probably means that you are pasting an incorrect URL for your set.
To get your playlist’s URL go to your settings page in SoundCloud and then in the “You” menu select “Sets“.
Then just choose a set and select “Edit” and you’ll be able to see your set URL.
I forgot to add that the latest version (1.2) allows you to view your playlists from the plugin dashboard.
