I have re-run through the localization doc again.
"Options_Input_ConfirmExit" and "Options_Input_ConfirmExit_Tooltip" is no longer used, but is still modifiable manually by editing the cfg file. I wonder if this may need to be removed or not.
For "Options_Input_DisableButtons_Tooltip", it says "Specifically for people who use Z/X/Ctrl/Space to click". When is the Ctrl key used? O.o
When will the "SongSelection_AddToFavouritesA", "SongSelection_AddToFavouritesB", "SongSelection_AddedToFavouritesA", "SongSelection_AddedToFavouritesB", "SongSelection_RemoveFromFavouritesA", "SongSelection_RemoveFromFavouritesB", "SongSelection_RemovedFromFavouritesA", and "SongSelection_RemovedFromFavouritesB" removed? I'm still not sure whether the Collection thing is not an issue anymore because I think so.
"SongSelection_GoOnline" is no longer used anymore, right?