This image shows the Add SSH keys portion of the Create compute instance, Networking page.

Under Add SSH keys there is text "Generate an SSH key pair (this is a link) to connect to the instance using SSH, or upload a public key that you already have."

There are four radio buttons:
--Generate a key pair for me
--Upload public key file (.pub) (selected and surrounded by a red border)
--Paste public key
--No SSH keys

The field labelled SSH public keys has text Drop a file or select one.