Import videos from Google+
If your YouTube channel is merged with Google+ you’ll be able to import your Google+ videos to YouTube.
Click the Import button on the uploads page. You will be able to pick a video from your Google+ account and import it to YouTube.
Once you’ve chosen one or several videos click Select and the import process will start. Then you’ll be able to change the title, add a description or modify the privacy settings of the video among other settings. Once you are done editing your video settings and information click Publish for public videos or Done/Share for private videos and unlisted videos.