Importing multitexture from 3dsmax?

So I’m using Cgsource’s Multitexture tool for making my floor in 3dsmax.
It creates one diffuse map for different objects composed of several textures. Maybe I’m making an absurd question but, is it possible to make it work in ue? Im afraid its incompatible.

When I export my object it only has 1channel for textures so I cant apply the others. I can select the different faces of my object and apply different textures but that would take so much time.

Any solutions?

Just apply a multi/sub material on it and assign material ID’s to your faces!