This tutorial provides the steps to add previous and next post links on single post pages in Oxygen.

Step 1

Edit your Oxygen template for single blog posts.

Step 2

Add a Section where you want the previous and next post links to appear.

Add a Columns element with 50 50 column layout.

Add a Code Block element in the left column having:

<?php previous_post_link(); ?>

Add a Code Block element in the right column having:

<?php next_post_link(); ?>

Select the right column div and set Right horizontal item alignment.

Reference: https://codex.wordpress.org/Function_Reference/previous_post_link