Just curious. I know that Unity has Displays 1-8. is there any way of increasing this or is 8 the max?
8 is the max. What is your use case for needing more? Would it not be simpler for you to have multiple clients networked instead?
I was thinking about that but wanted to find out the easier solution first. The reason for so many displays is for projection mapping. Total of 10 projectors, 9 on a physical model and 1 on a wall.