How to Send 1,000+ Personalized Emails a Day on Autopilot with Clay

Hello everyone! I’m excited to start using Clay, but I’m a little stuck. Could someone please explain to me how in this video (how to send 1,000+ personalized emails a day on autopilot) he managed to get box “latest_experience_company” @ the 6:10 timestamp. I have the lowest tier for clay maybe that's why? https://youtu.be/Et0IZgbo3nU?si=nr0lXHf49mt7fM3h