Here’s a tutorial I’ve given to various year groups over the last two years on how to make inserting accented letters quick and easy when typing in Word. Unfortunately when using OneNote, it doesn’t work. Still, I think it’s a useful skill to learn and help to encourage students to use the accents instead of just ignoring their existence! Alternatively you can change the proofing language to French. This will pick up most missing accents and spelling errors but not all.