I have added transform keyframes to the beginning and the end of a movie clip. When I decide to change the length of the clip, the keyframes keep their position. Is there any way they would keep position relative to the clip? So if let's say it is located at the end, when I shorten or stretch the clip, it is still at the end of the it? Basically what I want is a relative keyframe position. I haven't been successful in finding a solution.
Park the play head at the end of the strip. Open the dope sheet view and select the last keyframe, then press the Shift-S key, select Snap type "Current frame".
To move all keyframes by the same amount, select all keyframes then press G key and type the offset value in frames and press enter.