Setting Multiple Materials on BSP UE5 Preview

I am trying to set different materials on each face of a box shape in Unreal 5 Preview. In UE5 Preview the modeling mode UI was updated and I can only seem to set a single material on the box. In Previous versions of UE I could click a face of the box and set it’s material distinctly, then click “Create Static Mesh”, but now it seems to create the static mesh instantly. Does anyone know how to achieve this in the latest UE5 Preview? I’m new so forgive my ignorance! Thank you