I installed KSM8 + KA1 patch & latest KOReader nightly on my Kobo Aura One, all went well.
The reason why I wanted to try it is the 2 column view in a landscape mode on the bigger screen of the KA1. The option shown on one of the screenshots here:
https://imgur.com/a/1NR7I/all is missing.
Again, I'm trying this on a KA1 with a standard epub (tried a few). All I see in that menu are the options "View Mode", "Line Spacing", and "Margin". The other options such as "Columns" (the one that I want) and "Text Align" are missing.
Are they disabled by default? Do I need to edit a config file somewhere to turn them on?