Question If I buy the crossgrade from my VSS3 / Massivepack TDM plug-in, will I get to keep the plug-in after crossgrading Answer Unfortunately not. Crossgrading requires you to surrender your VSS3 / Massivepack TDM plug-in license, in order to deposit the new VSS3 Native license onto your iLok account. As such, if you need access to both the VSS3 Native and the VSS3 / Massivepack TDM licenses, we would recommend you do no crossgrade.