Services -> EC2 -> Instance
Select which you want to connect an instance.
Right-click and then choose a connect menu.
You can see the connection information as below.
Just follow the connection info.
Download your instance private key to ‘ex)Documents/dev/key’ where you want to try to connect with SSH.
3,4. It’s possible to copy & paste on your Mac terminal or Linux.
Congratulation!! You’re ready to use SSH on your Mac terminal.