Display system message on page instead popup

Hello,

Sorry for this question, but can you details what do you mean by "system message" please ?
Can you illustrate it by annotated screenshot, step by step process, and better what do you need to have, etc...

Awaiting your returns to progress on your subject.
Regards

Hi,

These system messages are displayed by your template.
The HTML is actually on the page, and the template has specific CSS code to move it on the bottom right corner:
i.imgur.com/QK9kUui.png
You can see on that screenshot that it comes from the CSS:

#system-message-container {
    position: fixed;
    bottom: 0px;
    right: 15px;
    max-width: 350px;
}