Add 'next post' button?

Newbie question: I’m using Voyager theme and want to add a ‘next post’ button at the bottom of each post to save the reader hitting back button and selecting next post. Navigation buttons → ← would work too. Suggestions?

Are you asking about using the stacks built in Blog? And advancing to the next post?
If so, there isn’t a simple way IMO to do it other than to add a permalink link to every entry…

I use Poster Stack 2, if your blog is important to you, it will make everything easier in that it also allows you to use other stacks within it which the built in blog doesn’t.

Or am I misunderstanding what you are asking?