After consulting the documentation, I found that I must use code to control spine animations. Can I use Mecanim to control and use spine animations?
Can I use Spine animations in Mecanim in Unity?
suanLoBeach Yes, you can use the SkeletonMecanim component: https://esotericsoftware.com/spine-unity#SkeletonMecanim-Component
You can see a short introduction to this component in the following video starting at 17:08:
Misaki oh, it is what I need, thank you