Installation. Upload the plugin folder to the /wp-content/plugins/ directory; Activate the plugin through the ‘Plugins’ menu in WordPress Installation. Upload the plugin folder to the /wp-content/plugins/ directory; Activate the plugin through the ‘Plugins’ menu in WordPress Shopify Custom Product Builder thanks so much for your sites- very informative. I am trying to build a site for custom monograms- the customers first pick their product w/size, color… and then. Local Small…