How to setup a few extra nodes at remote locations

I am trying to set up some nodes which I have here available, I have 8 in total, each node has a 1 TB SSD.

I got my access token and my first node has even been used.

But, when I went to go set up the other nodes, I am unable to generate another identity.

Can I reuse the same identity on multiple nodes? I have each node’s private IP mapped to a separate external port on the public host IP, configured with DNS was thinking it work would with each node like:

192.168.1.2:28967 -> storj.example.com:4000 
192.168.1.3:28967 -> storj.example.com:4001
...
192.168.1.9:28967 -> storj.example.com:4008

I set up 4 nodes like this and they all appear online, but they are all using the same identity. Is that OK?