Heap's integration with AB Tasty allows you to send AB Tasty test campaign data into Heap to analyze against behavioral properties. See the Heap page in AB Tasty's documentation hub for steps to set this up.
Once you have AB Tasty up and running, jump to steps 3 and 4 of our A/B Testing guide for info on defining and running experiments in Heap. For a funnel-specific example, see Use A/B Testing to Improve Usage.