Firebase not allowing key generation - is there some documentation for this?

Mission: PUSH COMMANDER
Task: Configure mobile (PUSH) settings in console

I understand that there have been changes since the video for this task was completed. And I have been able to use the support of others to work around those issues.

However, I am now faced with the following message “Key creation is not allowed on this service account. Please check if service account key creation is restricted by organization policies.” And I have been going all over the place trying to resolve this - each issue seeming to raise even more issues.

Is there some documentation on the steps taken to create a key and explain ther peripheral steps under the current systems?

Please, describe your problem here.