You may want to change the order of the Portfolio items in Divi since there is no general order option. This can be done by customizing the Portfolio module.
A child theme is needed to apply these changes. The Child theme keeps the changes intact if you update/reinstall your Divi theme.
For more information, please check the following tutorial first: How To Make A Child Theme.
To change the default order of the Divi Portfolio items (projects), you can add the following code to the functions.php file in your Child Theme folder:
// Order the portfolio items by title
add_action( 'parse_query', function( $vars ) {
if ( isset($vars->query['post_type']) ) {
if ( 'project' == $vars->query['post_type'] ) {
$vars->set( 'orderby', 'title' );
$vars->set( 'order', 'ASC' );
}
}
}); // end custom order
WordPress allows you to select a lot of order options. In the code above you can modify the following two lines to change the order method to something else:
$vars->set( 'orderby', 'title' );
$vars->set( 'order', 'ASC' );
You can find all of the available order parameters on WordPress's official documentation page.
Note: The changes will affect all of your Portfolio modules. It's currently impossible to apply these changes only to a certain portfolio module.