How do I use this French keyboard?

It turns your keyboard into a French AZERTY keyboard, so keys type what they would on a keyboard in France. For example, Q types a, W types z, ; types m, and the number keys type é (2), è (7), ç (9) and à (0). Hold Shift with the number keys to type digits.

How do I add accents to a vowel?

Type the vowel followed by =, and press = again to change the accent: e= gives é, e== è, e=== ê and e==== ë. For à, â and ä, press Q (which types a on a French keyboard) then =. It also works for i (ï î), o (ô) and u (ù û ü). You can also click the accented letters on the on-screen keyboard.