System 3000 operating attachment Memory System 55 color aluminum Features: Operation with blind control insert from the System 3000. Operation of blinds, roller shutters and awnings. An individual intermediate position can be saved with the blind control insert. Saving an up and down time. In memory mode, these switching times are repeated in a 24-hour rhythm. Lock function locks the extension operation and deactivates the memory mode. Night mode can be set. Status and function LEDs do not light up permanently.