Go to Start Run and type “sendto” (without quotes) into the runline.
This will open up the Sendto folder in explorer. Here you can delete the directories you do not want and simply drag and drop directories and/or drives you want to show up in this menu. This can include local drives and network locations as well. When your finished entering in the locations simply close the window.
Now when you right click and go to Send To, you have those additional locations ready.