If ``r'' was not selected in #6.1, the 1d network size is set with one of the following prompts (the various values are examples),
Network size (length) max 32, default 10: (if ``field'' was selected at the first prompt, #5)
Network size (length) max to fit 160, default 14: (if ``s'' was selected at the first prompt, #5)
For 2d networks, the size will be set in the wiring options, so prompts #6.1-2 may be ignored.