It's an interesting question, I take it you mean like you can chain WSUS servers with a primary server downloading the patches from Microsoft and the others downloading from the primary server? The only way I'm aware of doing this is to export, transfer and import the patches from one server to the other which is covered in the Update Manager help file. When trying to resolve another issue I did spot that if you run vmware-updatemgr.exe -H it reports
Supported serviceName: vmware-ufad-slave vmware-ufad-client vmware-ufad-vmi vmware-ufad-p2v
Unfortunately I think the other modes are related to the VMware Convertor Service.