The easiest way to do this is to make a copy of the original GPO, and then rename it.  Then you will have a new GPO with all of the settings of the original.  To do this, open the GPMC and drill down to the Group Policy Objects node. Right-click over the GPO you want to use, and select Copy. Then, immediately select Paste. It will create a new GPO named “Copy of oldname”. Simply rename it whatever you wish, and you’re in business!

gpo