@Shaokat -
The best way to get to know VRO is to download the product and install it, and read through the User Guide here. You can trial VRO for 30 days. You don’t need to implement it fully into your production. You can create ‘bare’ VMs (just an OS install) in your hypervisor to test them with VRO.
To use VRO, you need to have a Veeam Data Platform (VDP) Advanced or Premium license, as VRO requires VeeamONE as well as VBR. You say you have “Enterprise”...but what VDP do you have? Veeam changed their platform naming. They now have VDP Foundation (just VBR, whether Standard, Ent, or Ent+), Advanced (VBR+VONE), and Premium (VBR+VONE+VRO). My guess is you still have/use a socket-based license as I do, and only have VBR?
You can’t use VBR like a Cluster. VRO is designed to orchestrate Replication Recovery Plans, not cluster VBR. You can centrally manage VBR with Enterprise Manager (EM) though. But again..this is not a clustering solution. EM is just a means by which to centrally manage 2 or more VBR servers. Again, there is no clustering for VBR. Chris and I shared how to recover your VBR environment in the event your DC1 VBR server goes down in your other post in the Discussions group/section.