How to combine IDs of identical materials when attaching models?

Question

3D

Hello! Such a question, how can you combine all the same ID materials in max!?
I'll explain in more detail. For example, in my scene there are 2 models on which 2 are the same textures, but as soon as I attach these two models into one, it turns out that the ID of the models does not add up, but there are 2 of them (you can see on the screen)

When you attach there are a lot of buttons, but they don’t fit because sometimes it happens that in one model the ID does not match the other and with such an attachment one texture is replaced by another ...
Is there a way to combine the same textures (they even have the same name) into one ID?