I created an alternative layout for an article (in templates/mytemplate/html/com_content/article/newlayout.php). I can see it in the Layout option of the Article => OK
Actually, I would prefer to set this layout from a menu item. I created a menu item as 'Single Article' Menu Item Type but I can't see it in the Template Style option. I added a newlayout.xml (based on default.xml) in templates/mytemplate/html/com_content/article/ but it does not change anything.
Is it possible to set an article layout directly from a menu item?