This userscript prevents multiple choice from occuring in typing courses on Memrise and Decks by Memrise, replacing it with a typing prompt.
The easiest method is through the Tampermonkey chrome extension / firefox addon.
Then add the script using the following link: https://github.com/cooljingle/memrise-all-typing/raw/master/Memrise_All_Typing.user.js
After installing you can alter under which circumstances multiple choice gets replaced; instructions are in the script.
If you come across any issues or have a suggestion you can leave your feedback in the forum thread: https://community.memrise.com/t/userscript-memrise-all-typing/9986