Perhaps a controversial statement but after spending many hours on it I can only conclude that none of the layout / alignment options work with in a section or container created with lv_menu_section_create and lv_menu_cont._create. All widgets placed are placed vertical column no matter what I tried. I can put a grid layout on the page (but you cannot define where on the page) so the only option I can think of is to use a flex layout (not tried) but I do not know if you can put other widgets in a flex cell.
Has any one been able to position widgets with in a menu page, if so how perhaps with in the menu style.