Pre Sales

I have finished reading the URL above.

So if Im understanding correctly we can use for example out 10 runs from the 24 to my channel 10 i/o jack on my Beringer, then the route back out goes into input 10 on the 24?

If Im required to use a mod’d cable is there a detailed faq or diagram on this process?
Also, is there a diagram showing how to route signals in and out of my mixing board where I have a bunch of external processors.

Thanks in advance.