Hello, Ing. Alejandro Javier Villalón Navarro,
1. We kindly request that you watch the support videos tutorial located at https://xstore.helpscoutdocs.com/category/49-video-tutotials and read our theme documentation at https://xstore.helpscoutdocs.com/.
Additionally, please explain what customization you would like to know more about, so that we can provide further clarification.
2. Regarding free shipping over $49, please go to Theme Options > Header builder > cart > edit mini cart promo message.
We thank you for your cooperation.
Best Regards,
8Theme’s Team