@HybitHiit seems that quotes can´t still be copy from one deal to another but with the Basic Record Cloning feature is possible to copy a deal and add the existan line items by selecting the checkbox “Clone line items from the existing record to this one.” this new feature could shorten the process of duplicating a quote to a new deal because you don’t have to manualy add the line items to the Quote, however is not a direct solution and is not going to work to clone an existing quote to an existing deal.