Please submit a Support ticket to arrange this.
However, as an individual we can help you out with this by providing a 50% discount on the purchase of the second license. If you are a private individual and wish to use the ZBrush to KeyShot Bridge on both Windows and Mac, you will need a second license.
#Zbrush 4r8 move serial number
Serialized copies are called this because they use a serial number (also called a license key). Two of these are serialized and one is server-managed.
Pixologic software is available in three different license varieties.