How can I connect my Wacomb to my MacBook?

Episode 1461 (1:58:59)

Danny from Echo Park, CA
OWC Thunderbolt 2 Dock

Danny is a graphics artist that has a Wacomb Cintiq tablet/monitor. He also has a Mac laptop connected to a monitor. He wants to connect his Wacomb to his laptop along with the monitor, but it won't work. Leo says that Danny probably needs to connect his laptop to a Thunderbolt 2 dock, and then he could drive multiple monitors off it, including the Wacomb. The video card should have enough power to drive both.