The Transformation: If you have young children or grandkids, you should be familiar with transformers. The toy, usually a little car or airplane, consists of parts that slide, twist, or fold out to create an animal, a superhero, or an alien invader. More and more yachts are being built with parts that slide, twist, and fold out, too, and yachting is being transformed in the process. Sliding doors between salon and aft deck have been nearly standard for years, and convertible tops or moon roofs now open up huge portions of the upper deck at the touch of a button. The whole indoor/outdoor equation has been taken to a new level by balconies and folding bulwarks. Several recent yachts, from the super customs to a couple of production models well under 100 feet, now feature one or more balconies that fold out of the hull side to bring the great outdoors into the master suite, and sometimes the VIP stateroom as well. Still others install sliding glass doors in the sides of the deckhouse and fit fold-down panels into the bulwarks, expanding the usable beam by about 50 percent and totally changing the character of the salon and dining room. Interior arrangements are also subject to transformation. A number of larger yachts have a master stateroom on deck for the owner¿s normal use, but also include a second large stateroom, a VIP cabin on steroids if you will, for the owner¿s use when the occasion warrants. This second stateroom is either on the pilothouse deck, for a better view at anchor, or below deck, close to amidships, for more comfort at sea. The second stateroom is often fitted with folding bulkheads or other partitions. This allows part of the space to double as a gym, library, or media room for all the guests when not in use by the owner.