Many times I'd like to start from zero but I can't insert a keyframe with zero value. For example, I'd like to rotate a cube around X-axis from 0 to 90. To do this I need to create a keyframe with 0 value then a few frames away create another one with 90 value. The interface won't let me simply insert a 0 value. As a workaround, I need to insert a non-zero number then set the value to zero in the animation clip. Does anyone know how to insert a zero value in timeline?