Producing video for a very large and yet very low-res led wall.

I need to produce video material to be projected on a pretty large video-wall (10m wide, 3,5m high), equipped with "giant" leds, for a total number of 21,600 (288x75).

I'd like to know if there's a way to simulate that canvas so that "what-I-get-is-what-I-see", if you will.

Of course I know that I can esily set my sequence to be exactly 288x75 but I'd like to preserve the "pixel-effect" when I need to zoom-in the editing window (that is, always) in order to pre-evaluate in some way the final result on my screen.

Thanks a lot in advance  for any help you may give.

Carlo Romano