Hi kontakt-4135,

Thanks for reaching to us and take our apologies for the long delay in answering.

1. Please read below articles to configure variations correctly:

https://xtemos.com/docs-topic/attribute-swatches/
https://xtemos.com/docs-topic/variable-products-and-swatches/

2. Regarding moving gallery images into variations images, unfortunately there is no such option by default. You need to find a third party plugin to achieve more functionality that best suits you.

Regards,