Thanks for posting your question. Are you able to pose your question in English? If it may be more beneficial to you, you might want to post your question on the French FileMaker Forum here:
I hate having to give you a run around, but this particular forum's format is for the English language. A question in English may not only help me understand your issue, but also the great community here who love to chime in and help (and may not be fluent in French).
However, if you choose to post on the French FileMaker Forum link, not only will you be able to speak in your native language, you will also receive some great help from our moderators there along with the community.