Duplicating product variants for other products

Site URL: https://www.koryrussellart.com/

I'd like to take my product variants from one product and use them across multiple products, i.e.; I have prints of paintings that come in a specific set of sizes -8x10, 11x14, 16 x 20, etc., and all come in either paper or canvas.). Is there a way to duplicated these variants and use them again without having to enter each one for each product?

did this ever get figured out?