Hi vazqubran2222,
Thanks for reaching to us.
1. Quantity box
There are 2 methods to do that:
I kindly request that you enable the option to be Sold Individually, which will remove the quantity selection from specific single product https://prnt.sc/dnAHNuPDlOet
In case you want to remove it from all products, add below Custom CSS code to Theme Settings > Custom CSS > Global custom CSS
.single-product .quantity{
display: none;
}
2. Trust badges
There is an option to place content before or after Add to cart button in Single Product under Theme Settings > Single product > Add to cart
You can add any content to the HTML block: https://xtemos.com/docs-topic/html-blocks-usage/
For Cart and Checkout pages, default Woocommerce does not have the option and WoodMart theme does not have either. You can use Custom Layout to build custom these pages and use Shortcode widget to place HTML Block shortcode https://prnt.sc/y8qJwbOf6qgL
If you have any questions please feel free to contact us.
Regards,