Conventionally menus appear at the end of nodes, but the Info format places no restrictions on their location.
<menu> = * Menu: (<menu entry> | <menu comment>)*
The parts of a <menu entry> are also described in Menu Parts. They have the same syntax as cross-references (see Info Format Cross Reference). Indices extend the menu format to specify the destination line; see Info Format Printindex.
A <menu comment> is any line not beginning with ‘*’ that appears either at the beginning of the menu or is separated from a menu entry by one or more blank lines. These comments are intended to be displayed as part of the menu, as-is (see Writing a Menu).