There is no widget, but it should appear by itself on single post views.
Customize > Theme Options > Blog > Single – Post Navigation > OPTION
That is where you can change if it shall appear in the content below, the sidebar or be disabled.
The code for the next/prev nav can be found in /inc/post-nav.php if you wish to add it elsewhere.
thank you…sorry it took so long to reply. 1 other question. how do i get the black side bar to go down the entire page and not have a scroll bar on it>
Currently the way the theme is coded, it requires to have a scrollbar there.
However, this may be something I can look into to fix in a future update, thanks for the feedback!
I don’t seem to see the next / previous widget in the sidebar either. I have ALX posts, search, ALX tabs, and recent comments.