From within Client Portal the 'Day Trades Left (T,....,T+4)' section can be found on the home page under the Balances tab. From the Balance page scroll to the Trading Limits section and you will find the Day Trades Left (T,....,T+4) section.
Additional Information
Accounts that have not yet been migrated to the intraday margin standards are still subject to the Pattern Day Trading (PDT) rules and are not yet subject to Intraday Margin Deficit (IMD) calls. For more information on the FINRA rule change please review the FAQs on IMD.