UV Bumpmapping

so I’ve got this leaf…

I made a colour texture and UV mapped it to the leaf, which looks ok, but I need a bump map over it.

I’m assuming that I create another UV material, and attach that to the leaf somewhere, but I have no idea how.

I will be rendering this in indigo, so both materials, the colour and bump map, should be attached to the same object, I got an error when I tried to add one which wasn’t there the last time I tried.

Thanks very much for any help.

Add it as an image texture via F6 then set it to UV in map input and only Nor in map to.