BP - slide bar change materials on static mesh

yes, the first choice is more suitable for us i think, can you describe me please process how to connect year range to BP as year range x and y?

And help me with the integration of second slider in this BP? This will be a last thing what i need to solve.

I am really glad that you help me with that, you helped me a lot with this part of my project.

thank you again for your time what u spent on this topic.

best
C.