Re-KeyGen Virtual machine from template

[Keith]

I've managed to get OpenBSD working in a virtual machine and have 
created a template to use whenever I need a new OBSD virtual server but 
I was wondering what would need to be done to each machine to make it 
unique from the other machines also produced from the same template !

Is there a way to re trigger the process that happens the first time a 
OpenBSD machine boots up where the three keys are generated ?

Thanks
Keith