Merging Multiple Textures / Materials

I feel like the biggest idiot on the entire planet. I’ve been wracking my brain for hours trying to combine the 2 different materials the wrong way. I have wasted a lot of time trying to use unneeded Lerp nodes and such. I do have another question though. What are the height textures for? There is no place to pin them in for either the base textures or details textures. There are 2 material slots which I dragged and dropped my 2 new different materials.

I’m also not sure how to match the picture where the upper signs seem to have an emmisive glow to them. Plus the front of the glass doesn’t have the same roughness look to it either