The MX-850 controls up to 20 components, each of the 20 components can be programmed with up to 4 pages of LCD screens, plus the 33 hard buttons. The MX-850 allows you to edit the text on each LCD screen exactly as you prefer (up to 26 screens with 10 buttons per screen, for a total of 260 available text buttons and up to 5 characters per button)
The powerful memory of the MX-850 offers up to 912 potential macro buttons. Each of these macros can play back recorded sequences of commands that completely automate a complex system with one touch. A macro can record and play back up to 190 steps with time delays between steps when desired. For example: a single touch to the ON button could turn on the TV, the surround sound system, and the satellite receiver, then set the TV to the correct video input, the surround system to the right audio settings, and finish by selecting your favourite satellite TV channel