Distribution of power generated by the warp drive could be controlled from this center. In 2267, Engineer Scott and Doctor McCoy surreptitiously diverted warp power to the transporter in order to escape the mirror universe. The emergency manual monitor aboard the ISS Enterprise was heavily guarded and unauthorized power transfers were monitored by the security chief's panel. (TOS: "Mirror, Mirror" ) The emergency manual monitor was part of the TOS Season 2 expansion of the entire engine room set. Having been built on stilts, the monitor gave a commanding view of engineering.