Overall goal is trying to access (my own) Google Sheets with a server-side PHP application (not for sheets owned by individual app visitors). For this I'm hoping to use https://github.com/asimlqt/php-google-spreadsheet-client, which mentions that it doesn't handle the OAuth2 stuff, for which I can use https://github.com/google/google-api-php-client.
So in trying to follow https://developers.google.com/api-client-library/php/auth/service-accounts , it says (step 5):
The Console shows your private key's password only at this initial moment of service account creation--the password will not be shown again
However when I do those steps, it sends me a .json (with private_key_id, private_key, client_email, client_id, type), but at no point does it show me any kind of password. I have tried this with both Firefox and Chromium, tried deleting my old Service Account, making a new Service Account. Is there something else I need to enable on my Developers Console? or something else that I'm missing?