I followed the tutorial for setting up myself with SSH login which worked fine. I have another user I need to add as well but I am not sure how to go about doing that. I have his public key and added it to the drople...
You'll need to create a new user and add the SSH keys there. I normally set and create their home directory at the same time.
Create Home Directory + .ssh Directory
mkdir -p /home/mynewuser/.ssh