Hello Patrick,
in Step 2 - Template ---> Template Content you can find the different breakpoints on the side, and select them to resize or reposition the elements to fit the smaller areas.
I remain available.

Online translation:

Bonjour Patrick,
dans l’Étape 2 - Modèle → Contenu du modèle, vous pouvez trouver les différents points de rupture sur le côté et les sélectionner afin de redimensionner ou repositionner les éléments pour les adapter aux zones plus petites.
Je reste à votre disposition.

Thank you for your quick reply. I was not aware of this feature, rather I never tried it. Maybe my problem is in the design as you can see in the attached file. Instead of displaying an image in the template content I should directly insert the text in the image of the heading in the template structure ? but in that case it's gonna be too wide... For the smaller displays can I deactivate the display of the heading ? µOr how should I arrange it so that it's attractive for each size of display ? what do you suggest ? It's a lot of questions but I really need some clues to achieve my site. Than you.

Hello Patrick,
what is the result if you simply make the images smaller and decrease the distance between them?
Are they too small to be clearly read when displayed on smartphones?
I remain available.

Hi again ! It's a good clue I think that will work I keep you informed. Another question when I activate the 480 px view (720 px as well) a pink zone is displayed as a background, what is it ?  I deactivated the sticky bar and it appears for the smaller displays. So can I (and Must I) tweak evey design for every display size ? I've got qomething missing here in the knowledge of your product ... Than you

Hello Patrick,
it may be a color set for the header or the header background.
The colors set there can be checked, independently for each breakpoint, in Step 2 - Template ---> Template Structure.

Thank you, now I think I have a good understanding of the process. One last question (for now) : I use my free domain as a "test platform" for my current site. When I tried to upload my changes the display said " the selected web space hasn't been yet linked to a second level domain". The problem is that I don't need a new domain and the existing domain is running on another server and I do not want it to be redirected on your free website. I would hate to have to pay for a domain I would trash by the end of August 2026. What do you suggest ? Thank you !