[keycloak-user] kc_idp_hint for Kerberos

Is there some mechanism similar to kc_idp_hint=login that will let me skip authentication via Kerberos ticket and let me log in via the Keycloak login page? My situation is that I have admin user accounts in my application but users don't log in to Windows with these accounts. So UserA logs in to Windows with his UserA account but sometimes needs to log in to my application as AdminX. I see that I can use impersonation from the Keycloak admin console to impersonate AdminX and then open a browser tab and go to my application and I'll be logged in to my application as AdminX. But this strategy is a little inconvenient for users to use on a daily basis. Not horrible by any means but I'm sure I'll get some complaints. More importantly these users are admins in my application but they are not Keycloak admins and I'd rather not have them mucking around in the Keycloak admin console.