If you don't
What problems can be solved with this guide:
By default the Animotica video editor doesn’t have a separate feature for adding the Fade-in/Fade-out effect. But still users can add the fading effect in the beginning or end of a video clip. Use the features Color Clip and Opacity Transition.
Click + from its right and add Color clip with the white color. Set the Duration for 3s.
Between the last clip and previous clip, add Opacity Transition with the Transition duration of 2s;
Notice: experiment with the Duration’s settings for Color Clip and colors for the fade-in/fade-out effect.