The Doug Fleenor Design Preset 10 Architectural Two is a further development of thier popular Preset 10 Architectural controller. The Preset 10 Architectural Two (PRE10A2) offers new features and different wiring options. The new features of the PRE10A2 include a grand master, pile on mode (input + preset), jumper selectable button modes (radio or push on/push off), face panel lockout, and a two gang form factor that allows PRE10A2 to fit in all two gang back boxes. The PRE10A2 has separate input and output ports allowing merging incoming levels with the local preset. This cascading of inputs allows multiple PRE10A2 and a live theatrical console to share control. Systems can also be created where multi-room control is required by a single dimming system.