I notice that when Right-Click on the animation items inside preview panel, it will help me focus on the animation in Hierarchy. I want this action to expand a little further. When the focus is already on the corresponding animation, it can go ahead and further activate the animation for me. The result is, when I double right click on an item in preview panel, it will always help me quickly switching and activate to that animation. I can then use it as an animation shortcut menu. Sounds so convenient.