The default functionality of Microsoft Dynamics Ax 2009 does not allow to copy a quote when a quote's status is either Lost, Sent, Confirmed, or Canceled.
Today I was asked to allow the users to copy a quote when its status is Sent or Lost.
To copy a quote go to Sales Quotation Details, choose a record and then go to the header level buttons and click Function > CopyFromAll
The following are the steps to accomplish this very quick: