mikejolley · May 6, 2016 10:05 · May 6, 2016
diff --git a/functions.php b/functions.php
@@ -0,0 +1,7 @@
+add_filter( 'woocommerce_upsell_display_args', 'custom_woocommerce_upsell_display_args' );
+
+function custom_woocommerce_upsell_display_args( $args ) {
+  $args['posts_per_page'] = 5; // Change this number
+  $args['columns']        = 5; // This is the number shown per row.
+  return $args;
+}