@filsch,
it is a pre-buy question. By dublicating a product, will the second language (transalted by wpml) also be duplicated? (I hope yes)
Would like to update you that Smart Manager is not fully WPML compatible i.e. it will not update the product translations automatically when the main product is updated or duplicated. However, you can separately manage/ duplicate individual product translations using Smart Manager.
We have taken note and will keep you posted.
Is it possible to add variations?
Sorry, currently you can’t create/ add variations using Smart Manager plugin. However, if you have variations already then you can definitely manage it.
Alternatively, we have other plugin – Bulk Variations Manager using which you can create / update WooCommerce product variations in bulk.
Check the demo here for your reference.