By default the thumbnails for products are created automatically from the detailed images.


In order to upload the thumbnails manually:
  1. In the administration panel, go to Products > Products.
  2. Select the desired product by clicking on its name.
  3. Click on the upload them manually link on the General tab of the Editing product page.



  4. Upload a file in the Thumbnail option in the opened form and fill in the alternative text input field.



  5. Click the Save button.

In order to change the thumbnail size and appearance settings:

  1. Go to Settings > Thumbnails.
  2. Specify the neccessary thumbnails settings.
  3. Click the Save button.



    NOTE: After changing these settings you will need to clean up the thumbnail cache in order to re-generate the  automatically created thumbnails. In order to do it in the  administration panel go to Administration > Storage > Clean up generated thumbnails.

Detailed pictures are displayed in the View larger image  window, created thumbnails are displayed on the product details page. If you add additional images for the product, additional small thumbnails  are created and displayed under the main image on the product details  page.