Hi,
there is a small misunderstanding
I used to joomla document using Page Break, now I want to put a menu on the right of the doc. supposedly the position is "Custom Position" / "sidebar" but I can not display the menu,
A page break is a part of article not single module, so you can do this like you told.
I suggest to create a new category --> MyBook - then add there all articles connected with this topic.
Then create a new menu and add there all articles as a menu items.
Than publish article and assassinated menu module.
! This is better for SEO also.!This forum is for support not to teaching how to use Joomla
but sure sometimes we help.
Watch this movie :
http://www.youtube.com/watch?v=anCXjvk6RhII know it's based on J2.5 but in J3.x it works this same.