Hello Stan, I guess you mean key navigation in the menus ? Similarly you'll notice that key navigation doesn't exist (yet) on bookmarks either. I'll add that later (I made a note of it -> https://github.com/aaFn/Bookmark-search-plus-2/issues/46)

Indeed, because of limitations of the new Quantum extensions, the only way is to recreate the native interface, it cannot be extended anymore ... so it is imperfect (but improving ... ).

Not sure what you mean by "reverting to the standard-mode resets the bookmarks view to the default view", can you explain a little more ?

Note: on localization, I'll do French first, promis juré :-)