So this reminds me of a joke. There are only 3 numbers software engineers care about: 0, 1 and 2^32. The point of this joke is that as soon as the number of "t

So this reminds me of a joke. There are only 3 numbers software engineers care about: 0, 1 and 2^32. The point of this joke is that as soon as the number of "things" (in this case input sources) is >1, someone somewhere starts looking at solutions as if that number might be 5, 10, 100, 1000, 1 million. Most monitors will have less than 5. Some will have up to 10. This number is known when you make the monitor. Just let me buy a monitor with hardware input selection.