See recent report at https://community.logos.com/forums/p/105737/750813.aspx#750813
When i tried it on the Beta 3, Word 2013 was not responding when I clicked Additional Actions, but it worked OK after aborting and restarting Word.
In 6.4 SR-3 the right click still (after reporting it in the morning) shows "No additional actions" ---> that is until I tried it just now; when it suddenly worked!!
Flakey!?