A method of controlling a security assembly comprising a frame member and at least one door is disclosed. The disclosure is also directed to compositions containing the drug-cleavable substrate conjugates, and to methods of treatment using them. Also provided by the invention are tissue cultures of the soybean variety D4063284 and the plants regenerated therefrom. According to one aspect of the present invention, a clearly discernible feedback is provided to clearly indicate engagement between the ground-engaging member and the sole.