ADD User Profile a SSO ID textbox field

The user profile has very few fields and should have more, especially dealing with SSO.  Anaplan has an email field box but doesn't have a field known as SSO ID, which can align with Azure SSO field values.  A user's email might not be the same identity as what their IdP (identity provider) has assigned.  Anaplan can use this SSO ID value to link and associate it with integration with other SaaS vendors.  PLEASE look into this. I've seen vendors like Seismic has this and it works great for integration with Salesforce for an example.