在产品页面Magento上自动选择可下载的产品链接

Hi i have downloadable products on my site, there is a required field (a checkbox) on the product page. The customer has to select the check-box every time before they can add to cart. I want to checkbox auto selected so the customer doesn't have to check it manually.

Any suggestions on how I can do this?

I assume the checkbox is from a product option? Magento does not support default values for them but there is an extension for it: Magento Configurable Product Default Options Extension

It is not free but in contrast to other solutions you find on the web it works without any modification to the core.

You can set "Links can be purchased separately" to No to remove the checkbox:

You'll get this:

This might not be desirable if you're just looking for a way to set a default instead of forcing it.