Git Remote with Key

Hi all,

following a guide like this one: https://www.digitalocean.com/community/tutorials/how-to-set-up-a-private-git-server-on-a-vps, I managed to create a git repository on a EC2 instance. It is set up with a ssh key with a specific name 'some'.

How can I specify that key with Pycharm? All I can select in the 'define remote' window, is a name and a URL.

Thanks!