- Login to your admin area and go to Catalog > Products in your menu.
- Click Insert/Edit (We recommend creating a test product first. Make sure the test product is working, particularly on the front-end, before changing all of your other products).
- Click on the "Stock Control" tab. You should see what the below image shows.

- Change the "Has Options" option to Yes, Another 2 tabs will appear called "Option" and "Option Stock".

- Add your options and option choices, click save then go back into edit your product.

- All of your available option stock choices will have been calculated for you and you can now add your stock, images, sku's etc.
