add html area to Customization-products-Need help

[Alex.Wei]

Hi brothers:

 

I have an idea that to modify the products cutomization fuction of prestshop.

 

I want to add an html area to the products--cutomization, so that I can insert html code to each products and show it on the products front page.

 

my question is

1, how to add this html area code in the back end and save.

2, how to display it in the product.tpl.

 

please see my added image.

 

anyone can help?

 

thanks.