Picture 1. Click the "+ button" and "add folder"
Picture 2. Click "New Folder" in bottom left corner of the window that will open. Name it 2015 and click create
Picture 3. The 2015 folder should now have been created. "Choose" it
Picture 4. Back in Lightroom you will have an empty folder (obviously) and you should see your new folder under the 2014
Picture 5 and 6. Just drag the 2014 subfolder that contains your 2015 images into the new 2015 folder
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