Materials tab not complete

I’ve been working on this model of a guitar for around 3 days now, and it’s mostly been a breeze. This is the first time I’m using Blender to model even though I’ve previously used programs like Cinema 4D

I’m having the problem than when ever I switch to the materials tab in properties, it only shows 3 subsections and nothing else. It only seems to be happening to that one file, and not any other ones, help?

Sounds like you are set to use the Cycles renderer. Change between cycles and the Blender Render engine with the drop down box at the top of the blender window