Hi @Mohammad Nabil ,
Welcome to our forum!
Do you mean this feature?
If so, i notice that some users can use this feature but others cannot use it. And based on my test, the option is not displayed in my New Outlook too. (Microsoft Outlook Version 1.2024.1023.300 (Production). Client Version is 20241018004.21. WebView2 Version is 130.0.2849.56)
Based on my research, i found that this feature is gradually being pushed to the end users. Please be patient and wait for the feature to appear. More information: https://www.microsoft.com/en-us/microsoft-365/roadmap?filters=&searchterms=378775
Thanks for your understanding and support!
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