Kotoeri (written ことえり or 言選り) literally means "word selection".
In version 4, Kotoeri added support for Ainu,[1] colloquial language and Kansai dialect input,[2] the ability to search for kanji among related characters using keyboard shortcuts, and the option to use key bindings similar to Microsoft IME [de; jp].
Additionally, it allowed converting accidentally typed kana into romanized letters by pressing the 英数 (alphanumeric) key twice and reverting confirmed characters to their original state by pressing the かな (kana) key twice.
[3] For users who are accustomed to the initial version of Kotoeri, the assigned shortcuts can still be used effectively.
[5] These features ensure a seamless transition even for those familiar with the original version's shortcuts.