How to select inner surface of cube

Hello

I want to select inner surfaces of a solid cube.

I want to do it for Simulate purpose.

But i should be able to use it in part modeling window

23-Emerald III

I may be misunderstanding your question, if so, please forgive me.

Position your mouse over the area of the inner surface, Use right mouse button quick click to go thru the items available for selection.

Or position your mouse over the area of the inner surface, right mouse button long click and select the "pick from list option"

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