An apparatus in accordance with the invention includes a window covering actuation mechanism and a gearbox assembly configured to electromechanically operate the window covering actuation mechanism. A pull cord is configured to receive “cord gestures” from a user. These “cord gestures” may include one or more of pull sequences, pull durations, numbers of pulls, durations between pulls, and strength of pulls. In certain embodiments, “cord gestures” may also be defined by pull direction. A controller receives the cord gestures and translates the cord gestures into commands for controlling the gearbox assembly. A corresponding method is also disclosed herein.