A method for limiting control of a cargo handling system may comprise receiving, by a controller of a wireless access point, a system control request from a PED. The controller may determine a number of devices currently controlling the cargo handling system. The controller may send a first control key to the PED if the number of devices controlling the cargo handling system is fewer than a threshold number of devices or the controller may send a request denied message if the number of devices controlling the cargo handling system is greater than or equal to the threshold number of devices.