Whoa! 1- In the key frame editor darag down and select everything in frame 16 and click on key frame. 2- Do the same the frame 30. 3- select frames 1 - 15 and hit the delete key to clear everything out. 4- Now you can select everything for frames 16 - 30 and drag them to frames 1 - 15 and then delete frames 16 to 30.