Hero units don't appear in dropdown box

[CitizenSnips]

I'm following the tutorial off the Heart of the Swarm collector's dvd, and so far so good. But I've run into a rather stupid problem that I'm sure has an easy fix. I was supposed to place Kerrigan on the map, went to the unit tabs, hit "Player 2", "Campaign", "Zerg", and "Heroes" and nothing appears on the list. In fact, most of the categories don't having anything appearing under them. The only ones that see to have any contents are "Units" and "Structure" when I have it set to melee. Here's a screenshot to give you an idea of what I mean. Any and all help is appreciated. Thanks!

 

[Copycat]

Heroes are a part of the Campaign settings.

Go to Files > Dependancies (might be spelled wrong)

Add one of the Campaign dependancies and you'll have your heroes.

 

[CitizenSnips]

WOOOOO!!! Worked! Thanks a lot!