Are you using TurboTax CD/Download or TurboTax Online?
Unfortunately, there is no way to add another T2222 form or extra spaces on the form in TurboTax CD/Download.
If you need to send a second T2222 form, you can NETFILE with the existing form, and then once you get your notice of assessment, you can send the second form by mail with a T1 Adjustment Request.
We apologize for the inconvenience.
Please submit an update request to the developer for additional Individuals to be added to Download version and include it in the 2023 version as an update before April 30, 2024.
This should be an easy update to add 4 more individuals. (5,6,7,8)
Thank you,
Dale Hannigan