is it legal and right??

i got a keylock from blend swap CC0 (the model only). i did some blueprint to give functionality how to rotate numbers how it unlocks and moves. Can i sell it in marketplace?? is this legal is this right?

Sorry, I don’t fully understand the question, but to the extent you are asking about the legality of using third-party code or content in your project, Epic unfortunately is not in a position to provide legal advice. We recommend consulting with an attorney.