Sir, are you willing to manage 2 Virtualizor servers with one Virtualizor Admin Panel ? You can do it by adding one server as a slave to master server. Please refer this guide : http://www.virtualizor.com/wiki/Add_Server
Or, you are willing to manage 2 Server with one WHM license ? you can not use single WHM license on two servers. For more information, please contact cPanel support team.
Please let us know if you need any further information.