Import Video feature allow you to import video from other sites.

URL:
You will need url to video file, not page where video is displayed. That is urls should end with supported video formats like flv, wmv, mpg, etc.
For popular sites like Youtube, Dailymotion (public videos only), revver and metcafe you can use the share link provided by these site.
For example, youtube video can be mported with url like
http://www.youtube.com/watch?v=UNIQUE_KEY
Add Video to User:
You need to provide a valid username. Imported video will get added to this user.
Title:
Video title.
Description:
Video description.
Tags:
Tags/keywords for video.
Video Channels:
Select the Video Channels to which the video will be added after import finished.
Video Type:
Values: Private/Public. If you select private, video will only available to friends of the user you specified.