Acces child actor`s details (material, etc. ) in "Viewport/World Outliner" Details window

Hi,

am I missing something or it is not possible?

For example: box (static mesh) with child actor component button. And i would like to have o lots of this boxes in the game. But I would like to have different colors/materials of the buttons. And Details window show only “Child Actor Component” and I can choose only BP for this child actor. Why I can not see material option?

It is simplified situation, I would like to have a lots ot buttons on one box. I know I can create box with lot of this buttnos as static mesh and add collision box for each, but it is not clear solution.

Thanks for your answers.

EDIT:

I found work around. Make variable Material and on Event BeginPlay set material to all buttons. But still do not think, thats clear solution.