Activating Blackjack example via Blueprint Input

Hello,

I’m trying to activate the Blackjack template so the player can walk into a trigger box and then switch to the Blackjack game. The problem I’m having is that it runs purely off a different game controller & doesn’t allow me to switch to it via blueprints after the player has collided with the trigger box. For the game to even activate; it has to be set to Event Begin Play within the level blueprint; it won’t let me assign the activation to be from the trigger.

Any help would be greatly appreciated!