A multifunctional hydraulically powered platform. It can be installed aft and serves as a passerelle, swim ladder, tender lift and loading platform. When fully opened horizontally it triples the size of the stern platform. Twelve versions are available with 4 steps and load capacities 300 kg / 650 lbs. 220 V three-phase power supply. For each model of “Transformer” platform in series 3380 the equivalent model in series 3390 is available, without steps and with the sole tenderlift and loading platform function. PATENTED MODEL.