Adding 'custom code' on list details

Hi,

Similar to the SEO and Social Media tags, would it be possible to add a field in our Airtable base to hold custom tags or other custom code for List detail header and footer?

Use case: That way, we could track visits to a particular item (e.g. in a ecommerce site) to enable retargeting. Or we could email users who have checked out but not purchased something using a 3rd party marketing software.

Thoughts?