Google Authentication Position

Community Member

We are a consortium of eight colleges.  Most of the colleges use ADFS SAML for SSO.  We want to add our Google domain to the options for SSO authentication.  I read through the instructions and it stated that Google SAML SSO does not have to be in position 1...but I have to use the URL discovery service.  Will Google SAML SSO if I put it in position 1 because ADFS SAML configs can have any position?  Thanks for your time and input