Display User ID box immediately when accessing Service Portal login.

[Couts]

Hi everyone! Seasons Greetings! 🙂

I'm hoping someone may have come across this before and can have an answer.

I've been tasked with altering the 'Login' widget on our Service Portal (and eventually the Employee Center) to prevent users from having to click on 'Use External Login' when trying to access the portal (and not see the Username and password options at all; see Fig 1). We want the UserID window to be shown immediately when they access the page (without the need to click on 'Use External Login' button in Fig 1; see Fig 2).

I've been able to comment out some of the HTML on the Login widget but I can't seem to figure out what code needs to be commented out to immediately show the 'User ID' box. The only code that does this prevents the user from using the submit button or pressing enter on their keyboard to log in. Please see the code that was commented out to achieve what I have done so for (see Fig 3 and 3a for examples).

A bit of more info:
We are unable to Redirect the login to a IDP because we have two Microsoft tenants that log into the Service Portal and redirecting it to one specific MS login will prevent the users from the other tenants from logging in entirely.