make it only show one multiple mat? like lets say for numbers.mat you wanted it to show "2" how would you do it?

You have to do it with a cog. Look at the part of the doors with switches cog for an example.

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For the love of God, use the consistency checker!

Have Lightsaber Will Travel

I read the cog from top to bottom, i dont get how it changs the surface

If you want it to say 2 all the time, then decompile the numbers.mat and compile the 2 material as it's own mat. That's the easiest way to do it. You could use a cog, but that's more trouble. You need Mat Master to do that. If you want to know how switches work, then read the switches tutorial.