If doumentation does not cover your questions or have more to ask / share with other product users or get reply from Official Support then feel free to ask / share on CodeShop Amazon Affiliate plugin Forum.
Understanding Menus & Button
After you have installed plugin successfully then you should see Codeshop amazon affiliate Main Menu name
as 'CodeShop' in your Wordpress Admin menus. You should see the main menu as shown in image -
Main menu 'CodeShop' has several sub-menus, to keep the Plugin simple and user friendly it has only four sub menus -
- All Products
- Add New Products
- Categories
- Settings

BUTTON
Codeshop Amazon Affiliate Plugin has a button 'CodeShop' which should be shown on your Wordpress regular Posts / Pages when you will add new posts / pages. The button 'CodeShop' shows above text-editor at the same line where you have Wordpress 'Add Media' button. 'CodeShop' button helps you to add / advertise Amazon products with your Wordpress regular Posts / Pages. The button should be shown as like image below -

Before make the amazon affiliate plugin work you need to put amazon affiliate related credentials at Setting page.