Ok, I'm stupid... I don't see the word specular anywhere on this panel?

I guess i'd rather control each model individually indeed anyway.

I found the material editor in MED.... theres 2 skins (of course) the diffuse and the normal map. I looked at both the normal map and the diffuse skin, but the specular level is at 0 already. By default, everything is set at 0 except alpha which is 100%

How do I make specular less than 0 ? or do I need to raise it to lower the sun's influence?

Oh and which skin do I set the influence?