Why don't you just try it? If it does not work just re-install the KOReader apk on the Boox device.
If I interpret the User Manual correctly it should work copying certain folders and files to transfer the settings to from one device to another:
"Backup your KOReader settings
In rare cases that you want to backup and restore your KOReader with all your settings, you can backup these folders and files under the KOReader installation directory. Then you can overwrite them after a clean installation to restore your settings:
Folders:
settings
styletweaks
Files:
data/cr3.ini
defaults.persistent.lua
history.lua
settings.reader.lua
settings/profiles.lua
Files under data/dict/ and /data/tessdata/ directories (if they exist)
INFO Your individual book settings and highlights are kept in the same directory as your books in a folder with the same name as your book. You can backup these folders separately if you wish."
https://koreader.rocks/user_guide/#L1-troubleshooting