Livid Instruments' Octav-4 allows control of up to eight of the popular Edirol v-4 video mixers for synchronized and centralized control, providing multi-screen control with up to 32 video inputs and eight unique video outputs. This allows the creation of presets for basically anything the V-4 can do. Users can also cycle multiple inputs, creating a chase effect across multiple screens at the same time. The octav-4 takes advantage of the V-4’s MIDI integration, allowing quick configuration, connection, and control of multiple V-4s. The software features one step MIDI setup, cascading controls, automated input and transition cycling, BPM transitions, effects selection, and preset saving. It is available for both Mac and Windows and can be purchased directly from the Livid Instruments website.