Hi Karen,
Thank you for you question and thanks for using Calloway Theme for WordPress!
Normally Yoast Breadcrumbs work out of the box but if you need to add the functionality to your theme you can by using a plugin like Code Snippets to add custom php and run it on your site.
We found that this snippet works well for adding breadcrumbs:
add_action( 'boldgrid_header_bottom', function() {
if ( function_exists('yoast_breadcrumb') ) {
yoast_breadcrumb( '<div class="container"><p id="breadcrumbs">','</p></div>' );
}
});
If you’re looking for a theme that you can customize breadcrumbs without using any code, I recommend checking out our newest theme Crio. Crio fully integrates with the BoldGrid Post and Page Builder plugin giving you a wide array of customization options.
I hope this helps! Please let us know if you need further assistance.