Adding Diffuse, Specular, and Normal Maps To A Cube?

Anyway someone can point how to do this? Thanks.

Change your shader to one that uses normal maps and drag your maps in there?

But from what I understand, I can only apply two of the three? Sorry if this seems really simple.

Bump.

You’re looking for the Bumped Specular shader, which will allow for

Diffuse (RGB channels of MainTex)
Specular (A channel of MainTex)
Normal

Some applications of the specular map actually have a colored specular map. This too is possible but requires a custom shader. Check out Strumpy Shader Editor, which makes creating such shaders fairly trivial.