Here is a French-Swiss keyboard (clavier Suisse Romand), remove the .txt in the end.

(Click here for a French-Swiss keyboard with color emojis).

Add the following lines in the layouts.conf file or create a new file as explained in this thread:

[fr_ch.qml]
name=Francais Suisse
languageCode=FR
handler=Xt9InputHandler.qml

Restart your Jolla afterwards or restart maliit server as explained by dcihlar:

systemctl --user restart maliit-server.service


Edit: new version, modified the position of accents for the letter "U".
Edit 2: modified .conf file valid for FW 1.0.05.16, remove the .txt in the end.
Edit 3: new version, valid for FW 1.1.4, remove the .txt in the end.
Edit 4: add link for the French-Swiss keyboard with color emojis.