Warning: This mod works fine for me, but I can't guarantee it will work for you. Use at your own risk!
this is a replacement for my old Hyphenation Disabler
Instead of disabling au-to-ma-tic hy-phe-na-tion of words, it moves the hyphen dictionaries to the internal memory, so you can choose whether you want to disable hyphenation altogether (by deleting / renaming the hyphen files), or if you instead want to modify/improve the file, or replace them with files from other readers or projects.
To use, rename the attached hex file to storyeb07.hex and copy it to the internal memory (like a regular firmware update).
This change can also be reverted by using the attached Undo file, which will also delete the hyphen folder in internal memory.