Can a EC2 Server on AWS have two pairs of SSH Keys?

[zeus]

I have a EC2 server running on AWS. So, far it's been 6 months and the service against the price is great. But now I have to get a new pair of SSH keys for an another computer. Is it even doable? If yes then how?

Create new user just like @elliekushn suggested.

There are other methods such as giving away log in info to others and what nots including creating a new key pair. But those are not recommended.