After you install goz from zbrush close it.
copy GoZBrushFromMaya.mel to C:\Program Files\Autodesk\Maya2018\plug-ins
From C:\Users\Public\Pixologic\GoZApps\Maya
also Copy userSetup.mel to C:\Users\username\Documents\maya\2018\scripts
from C:\Users\Public\Pixologic\GoZApps\Maya
https://www.artstation.com/cordova5252
Replies
After you install goz from zbrush close it.
copy GoZBrushFromMaya.mel to C:\Program Files\Autodesk\Maya2018\plug-ins
From C:\Users\Public\Pixologic\GoZApps\Maya
also Copy userSetup.mel to C:\Users\username\Documents\maya\2018\scripts
from C:\Users\Public\Pixologic\GoZApps\Maya
https://www.artstation.com/cordova5252