Hello Nicolas,

One way you could implement this is by creating a custom template for the markers on the map. You could have a value that you store when an item is clicked on and then in the template check to see if the current item that is being rendered. If it is, then render a different template than you normally would.

I have modified one of our samples to demonstrates how this look, which you can find on jsFiddle here. Please let me know if this approach meets your requirements.