XTRA WP Theme - Action hook for adding content before fixed side, https://xtratheme.com/

codevz-before_fixed_side_1.php

<?php

/**
 * With this function you can add any content or php codes before fixed side.
 */
function my_prefix_before_fixed_side_1() {

	echo 'This is a custom content text.';

}
add_action( 'codevz/before_fixed_side_1', 'my_prefix_before_fixed_side_1' );