Chapter 3.3. in documentaion

No, there are no examples there just how to do it.

try it and test it into preview mode with the explanation done into documentation.

Not complicate.

always better to do it yourself

... it's simple; ... read this guide and the guides below, and then just click to try all the examples in Preview to really understand how they work...
https://help.websitex5.com/en/v2023.3/pro/index.html?ad_corner.htm
... if you have doubts about some example, apply it in your Test Project and then post the LINK of your online example here...

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ciao

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While changes are visible only online and I have hundred of pages ... ok, thanks.

After some hours of testing exporting and upload I have found something that matches some of expectations.

The Cover way does not work because it is covering all screen regardless of image size. This is the answer I was hoping for :-)

The Bar solution was close to what I was searching for. It is great that one can choose the page on which Add is load.

https://www.softedu.eu/

... I saw, excellent, well done ... and as you noticed, it's very simple... ciao

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