Hello,
There are four places in our theme where you can add your extra text/HTML information on the product page in our theme:
1. To the short description field.
2. Product description shown in the product’s tabs.
3. Our custom additional tab that is disaplyed on all products. You can configure it in Theme Settings -> Product page.
4. Using our Extra content HTML Block field.
All of these methods support Visual Composer drag & drop builder.
Sorry, but your other requests require additional code customization since there are no such features in our theme.
Kind Regards
Xtemos