In a SOLIDWORKS animation (motion study), the position of a key point on the time frame indicates the beginning or the end of a motion or a property change. Dragging key points left or right changes the duration of a motion. To scale entire SOLIDWORKS animation, select the top right key point and use Alt + Drag.
To learn more about SOLIDWORKS Animation check out the training book: Creating Animations with SolidWorks Step-By-Step Learning Guide. Or contact us about a custom SOLIDWORKS Animation course.