With the new OpenShot library, you can now control the speed and direction of your videos with a time curve. If the curve increases at a 1/1 slope, the clip plays like normal, but if it decreases at a 1/1 slope, the video is reversed at normal speed. If the curve is steeper, the effect is more pronounced. If the curve is shallower, the speed will be slower. This is a very powerful video editing feature, and I look forward to all the creative uses people will find.