Topic: Rotating videos?

When I bring a video into Kinovea more often than not it needs to be rotated right or left to straighten out the video.

Please tell me this is an option.  And if not... why?  Such a great program to not have this option.  I get 100's of videos weekly to analyze and I have to use Window Movie Maker to rotate them and then resave it (the file is now 10x LARGER in terms of KB).  A hassle to say the least.