Bob
I used to use a program called PAF Companion, which only worked with the LDS Personal Ancestral File, that did exactly what you are looking for. With this I could generate charts 3-4 feet wide and up to 9 or 10 feet long. Unfortunately, while PAF runs on Windows 10, PAF Companion does not. This was a major disappointment when I upgraded to Windows 10.
Try contacting Progeny Software, and ask them, they may have a feature in the program that will do this; it may just not be described on the website.