Importing mesh with 3 textures shader

Hello.

3dsmax standard shader specular map should be assignend to specular color for correctly exporting to UDK? Because if assigned in 3dsmax to specular levels, after importing to UDK specular map not automatically assigned to specular slot.

If you have questions about UDK post here:https://forums.unrealengine.com/forumdisplay.php?78-Legacy-Tools-(Unreal-Engine-3-UDK)

Also, UDK does not import materials as well as UE4

Ups, I am sorry, I am working with UE4. I understand what UE4 do not import materials, but multi/sub and standard material structure of textures supporting. So that’s why I’am asking about correctly textures assigning. Is it correct that I should assign specular texture to specular color slot, not to the levels slot?