Available in 3ds Max 2011 and higher.
<adsk_Metal_Patterns__Knurls_V2>.Scale_connected : boolean
<adsk_Metal_Patterns__Knurls_V2>.Scale_shader : texturemap
<adsk_Metal_Patterns__Knurls_V2>.Scale_paramName : string
<adsk_Metal_Patterns__Knurls_V2>.TheList : maxObject array
<adsk_Metal_Patterns__Knurls_V2>.Shader_Version : integer