MINECRAFT: How to Run Two Servers on One Hamachi?

Hello,

I just learned how to host a Minecraft server for my friend to join using Hamachi. It is very simple.

I was wondering, is it possible for me to run another server for another friend to join? I want to have my own world with him.
(I know the answer is yes).

Would I have to download a whole new server file for my other friend to join? Or am I able to do this using the same server file I downloaded?

Again, I'm using Hamachi because I'm unable to port forward.

Please run it down to the specifics since I'm still new to this.
Thanks!

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