You can see and edit frames that make up the animation on the timeline.
There are two different types of frames.
Keyframes or keys are frames in which the character's poses and positions are saved.
Keys are marked dark blue on the timeline.
Interpolation frames are frames in which intermediate poses between the keys are automatically calculated.
In Cascader there are several different types of interpolation, which are marked on the timeline with different colors.
Each type of interpolation will be explained in more detail in the following tutorials.
It is often necessary to quickly switch between keyframes only.
The first and last frames of the animation are displayed under the timeline. When there are a lot of frames it is convenient to limit the visible area of the timeline to work with.