Several texture samples on the same model

Hello !

I am playing around in the engine, however I made a texture for a model with photoshop. But the model has several textures and there is also the problem.
When I try to put them on the model only 1 is avaliable, while in the 3D program where I made it, it was all complete… I’ve tried to play around with the Material to get it working but without succes.

Can someone help me through this ?
See the photo’s for maybe a little bit more sense haha