Apply melted butter to one side of the steak and take the lid off your grill. Place the side you buttered on top of the hot zone. Allow the steak to sear for 30 seconds. After 30 seconds, spin the grill grates into the cool zone.
In the cool zone, flip the steak over and then apply your melted butter. Then place it in the hot zone to sear for 30 seconds. After 30 seconds spin the grill grates into the cool zone.
Then repeat these searing and spinning steps 1 more time for each side.
In total, each side should be seared for 1 minute and buttered once.