Set Animation Length...

Sets the number of frames in an animation or time-scales the animation for a different number of frames.

Frame Rate - Sets the frame rate where NTSC is 30 frames per second (fps) and PAL is 25 fps.

Extend - Any timeline whose keyframe occurs in the last frame of the animation is extended so that the timeline's keyframe still occurs in the last frame of the animation.

Scale - The duration of all timelines is increasedor decreased as specified so that they extend over a range of frames which is approximately the same proportion of the animation after the number of frames is changed as it was before. A timeline that is only one frame long may scale to 2 or more frames This may be an undesirable effect and after scaling up an animation you should review any timelines that were originally one frame long.

Blanks - Do not change any non-Camera Actor's timelines at all. When the animation is extended leave any new timeline space empty. Since Camera Actors can only have one costume timeline all camera costume timelines automatically occupy all the available space.

Chop - Cut the animation off at the last frame. Any timeline that extended beyond the new setting of the last frame are truncated and the keyframe for those timelines is moved to the last frame. Any timelines that are all after the last frame are removed from the animation.