A layer frame is a frame in which the character’s layer changes. Adding layer frames within the timeline allows you to add expressions to your character and enables layer replacement. A layer frame allows multiple layers to be replaced.
The following is a tutorial on how to add and edit layer frames.
Move the playhead to any position > click [+Layer] in the layer track > click the layer frame > double-click on any layer of the character to replace the layer material.
The following are practical uses of layer frames. Click to view:
How to add facial expressions such as winking and talking?
How to change the color of the character’s hair in the animate mode?
How to replace some of the layers of a character in the animate mode?