Is there a way of hiding products?

I have a form where people can select products. The products are courses and as the dates of the courses pass, I'd like to be able to "hide" those products so people don't have to scroll through a bunch of past courses to find the ones that are still upcoming.

I know I can delete the products/courses as their date passes, but since the courses will be offered again at a later date, I'd prefer to keep the entire form intact and simply hide and unhide the courses.

Is that possible? I couldn't find anything in the forum that helped.

Unfortunately, it is not possible to hide/show products within payment field with conditional logic. You can only hide or shown entire payment field. 

How to Show or Hide Fields Base on User's Answer

Possible workaround is create your products outside of payment field, with basic fields. Then you will be able to hide/show your products based on date field. 

In this case you will also have to perform calculation inside of the form and to pass calculation to payment field. 

How to Perform Form Calculation Using a Widget

How to Pass a Calculation to a Payment Field

Let us know if you need furtehr assistance.