I want to know if it is possible to add a frame in the middle of an animation, for example, I want my animation to take a certain amount of time. I configure it on the slowest setting, but it's still to fast. I want to add some frames in the middle to make it longer, but every time I go to a certain frame and press "Next Frame," it goes to the end of the animation. I've tried every thing I could think of. Can you help me?