Option to have second variation as well on single product page

Hello,

Your purpose is not clear. A single product cannot have any variations. If you want to add colors to the product, you need to create a variable product. Please find more instructions here: https://xtemos.com/docs/basel/attribute-swatches/

So, you need to create attributes of color, then you create a variable product and then you configure color choice as swatches if you want.

Best Regards