Okay, and do you have any idea how I can do that? Or a resource, a link to help me? Thank you

All right. Thank you. So in my application, I don't need to use a model ?

Thanks for your reply, but how do I replace the content of the notification with an action that triggers the auto scroll of my collectionView ?

I understand, but I don't know how to implement this in the code. I didn't specify, but I'm new to rapid development. And I don't want to show notifications to the user