man-with-a-view on "[Plugin: Watu] Where is the code to insert?"

I am a new user and have been experimenting with building an exam but I can't seem to find the code to insert into a post.

In Manage Questions, the following is listed in green at the top:

'To add this exam to your blog, insert the code [WATU 2] into any post.'

However, '[WATU 2]' is not clickable. Where do I find the [WATU 2] code?

http://wordpress.org/extend/plugins/watu/