Prefab does not have Model/Rig/Animation/Materials properties

Here is an FBX file, when I click select, I get the Model/Rig/Animation/Materials properties pane (next image)

I can modify Rig/Animation/Materials…

I make a prefab of the original FBX model, and I have the select button as well

But I do not get the Model/Rig/Animation/Materials pane…which I need to access…

Is there another way to access the Model/Rig/Animation/Materials for a prefab?
(I may sometimes only have the prefab, and not the original FBX file, so I sometimes can not use the original FBX file)

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animation and material is meant to be separated from rig
you need to take out the animation and material on separated file then when you make a prefab from your rig then you can apply material and animation to that prefab