Moving Variants

-- url of the page with the problem -- : www.presentdanger.nl/
-- HikaShop version -- : hikashop_essential_v5.1.2
-- Joomla version -- : 5.2.2.
-- PHP version -- : 8.3.14
-- Browser(s) name and version -- : Chrome

Hello
How do I move a variant down?

Hello Nicolaas

Thanks for your answer

Difficult. My problem with the order has been solved but I deleted something that I shouldn't have done. I don't remember what it was. It was a product name that was no longer sold. At the front I get the error message for T Shirts: The default value of one of the features of that product is not available as a variant. Check the features and variants of that product.
Even with the help of ChatGPT I can't solve it. I understand the error message but can't find the error.
(Maybe I should put this problem in a new topic?)

Problem solved
Specifications and properties gave some ambiguities but that was the problem. Good reading is not given to everyone......