Task Chains

Question as I'm a little confused regarding the implementation of Task Chains. Is this still solely a separate extension, or did I read somewhere about it being incorporated into the main MGT2 ruleset? If it's in the ruleset, how do I access it and use it? Sorry for the dumb question.

pretty sure its still an extension. I think he plans on incorporating it in the next patch? If its loaded, you'll see a small ""TC" button in the upper right.