Okej well I’m not a zbrush master so i hope someone can help me out here.
I have created a column with multiple meshes.
I have tested to export all meshes together as one and as individual.
But the problem is when i import in zbrush i only have 1 subtool,I want all to be separate subtools.Doesn’T matter what i do,i cant import one mesh at the time,it replaces the previous with the new i imported,Zbrush wont let me import multiple meshes at once 
If i import that mesh i included all inside it wont split it into subtools,just one subtool with 4 meshes