What directory in Windows 8.1 / H9 Control 2.6.0 do I find the file listings of Presets and Preset Lists for text editing?
They are under AppData/Roaming/H9 Control/PresetLists.
One of the things I like the least about the H9 graphic display is the inability to present a complete 99 preset list of presets in a one page or at most two page view
Yes, that request has come up in the past. It has been on our to-do list to offer a view option that drops the algorithm icon in favor of fitting more presets in the available space.