Hi @Luiz_Fernando
Welcome to our forum!
New Outlook still has limited support for third-party add-ins. More information, see: Feature comparison between new Outlook and classic Outlook - Microsoft Support
By the way, Outlook actually has an official feedback portal where customers can send feature requests or suggestions to the product team. It is recommended that you could post the functions you expect and your sincere suggestions on the website dedicated to collecting feedback. We sincerely welcome your suggestions, and thanks for your understanding and support!
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