This extension allow you sharing some link provided by extension and your customer just clicking link and product added cart is ready for order. It can effect your checkout rate positively.

This extension only tested default theme and version 3.0.3.2 but it will be work all version 3.x.

Before installing extension you should provide modification permission for some folder to OCmod Installer. You can use this extension here is link.

Installation and Usage
You just upload ocmod file via Installer.
Refresh modifications.
In product list there will be a button for link, click it.
After that paste copied text after your domain.
The link should be seen like https://yourdomain.com/index.php?route=checkout/add/tocart&product_id=42
If product has required field, it refer product page.
Otherwise it will refer to cart page.