How do I remove a deal from pipeline? Bigin

How do I remove a deal from pipeline? Bigin

Sometimes, the deal is just not going to happen after a while. It is not lost yet, but due to the delay in the decision, it will be strange to forever put it in new enquiries or in say quotation given. I would want to remove it as a deal from pipeline, and let it stay in contacts. But I realise not possible to remove, but can only delete (which I do not want to delete, I just want it to go back to contacts).