Hi,
Salesforce documentation suggest that in order to prevent lockout of your org when using SSO "System Administrators should not be SSO-enabled as they will be locked out during outages"
How can I accomplish this? I don't find any such in the settings menu options or on the profile.
Is it possible to allow just selected user groups to use SSO?

https://developer.salesforce.com/docs/atlas.en-us.api.meta/api/integration_and_single_sign-on.htm