In Proconnect I am getting error 5059.  Taxpayer already applied for ITIN, but we won't receive in time for 4/15 tax filing.  We would like to file an extension for the 2023.  Form 4868 instructions indicate:  "Although an ITIN isn’t required to file Form 4868, you’ll need one to file your
income tax return. For details on how to apply for an ITIN, see Form
W-7 and its instructions. If you already have an ITIN, enter it wherever an SSN is requested. If you don’t have an ITIN, enter “ITIN TO BE REQUESTED” wherever an SSN is requested.

I don't see an option to enter "ITIN to be requested" .  How do you enter this in Proconnect.