Can I rotate materials

[Artbot]

Simple question--I can't find the answer to.
I have one object. I want to fill the object with the WOOD PLANK Material. But instead of the planks going up and down--North/South,  I want to rotate the material to go East and West--horizontal.
Can this be done? Not the object, but the angle of the material?

[TpwUK]

If it's a procedural texture use the mapping tool ... If it's a bitmapped texture use the Angle setting, if it's 0 change to 90 or vice versa

Martin

[Artbot]

Thank you! Yes the mapping too!