How to add default attributes when adding a product in opencart?

Question

CMS

Hello.
When adding a product to the card, you need to fill in a large number of attributes. Is it possible to somehow make them initially active but not filled?
The thought immediately slipped through to simply hardcode it in the template, but then if the field is already filled in, the system will not show this) I would be grateful for any advice, thanks.
The screenshots will make it a little clearer.
Standard

As you wish

Answer 1

If you understand Javascript, then you can do it with Javascript.