Add Additional Selected Data to a Store Order

Question:
Need some direction on how to add some additional data that a user will be selecting to a Wix Stores product and resulting order details.

Product:
Wix Stores

What are you trying to achieve:
We have a dropdown (list of names) and date-picker added to our Store Product pages that pulls its content from a separate CMS. The user will make a selection from the dropdown which will in turn fill the date-picker. This all works fine.

But we want either of these selected details (doesn’t need to be both) to be added somehow to the resulting order details so the client will know which options were chosen. The data could overwrite a sample Product Options dropdown we could add to each product. Or one of the two Custom Text fields we add to each product. Or the notes area?!? Or any other method that would include it with the order somehow.

I’m not completely fluent in JS or Velo, so would need at least some direction (e.g, which API to target, function to use, etc.). Just at least some direction to point me towards a solution or if its just not really possible without completely reconstructing the Product page. THANKS!

Any insight or tips at all here? This is one of the last things we need to figure out on the site as we prepare to hand over to client and launch. So even an idea of if it’s even possible would be a start!

Thanks!