Board Thread:Questions and Answers/@comment-71.197.214.59-20161114155823/@comment-26942307-20161114200253

You go to you storage and locate the wagon/train/decoration ect. and then you click on the bottom where it says Sell, then you get a question asking if you are sure, and in case you have more than 1 you also get a slide bar you can use to sell more at the same time.

In case you don't have the Sell bottom it is because there are a text saying Reward, and in this case you can't sell it, but it will not count in how much you can have in the storage.