A system and method for selectively enabling fluid communication between two volumes includes a tubular having a port housing with at least one port and a member disposed with the tubular and movable between a closed position in which the port is closed and an open position in which the port is open. The system further includes a lock element positively engaged with both the member and the tubular for maintaining the member in the closed position. Further, an actuator is in keyed engagement with the lock element for biasing the lock element for enabling the member to move relative to the tubular to the open position for opening the port.