The logic, and procedure, is fundamentally still the same as discussed in this thread
. You will need to invest quite some effort to adapt everything to the Paperwhite, but go ahead if you want to!
PS: CollectionsManager is not a reader app
Anyway, you can use the russian localization by renaming its section name to "en" (instead of "ru") - this way, the english strings will be replaced by the russian ones.