One Poduct in Multiple categories

I have this "little" Problem that i want to offer different categories that "share" products. in our shop, for example, I have set up all sents for different styles of candles (votives, etc.) and now want to add a "season" category.
And i hoped that there is a way to "copy" the affected products from the original categories, like votive or jar) to the new category (eg. Christmas).
And that way, customers can browse by Style of candle OR by Seasonal Scents.

Do i have to enter the products all over again into the new category or is there a was to copy the products?

When you Copy, there is a choice to Copy as a Duplicate or Linked Product ...

Linked Products are 1 Product that exist in multiple categories ...

How do i do that?

You find the Product you want to place in multiple categories and click the C for Copy ...

Then you select the Radio button for Linked Product ... and the Category you want to Link it to ...

thank you soooo much. easier that i thought. :)

Another thing to look into is the Multiple Categories Links Manager ... the button at the bottom when you hit C for Copy ...

This shows all Categories with at least 1 Product and let's you navigate through the categories/products to update the Categories a Product is Linked to ...