Show Rulers in Email Composing Window on macOS

Hello everybody,

I want show ruler on Email Composing Window on macOS like that on Window

I have searched alot on Google but I can not found any results.

On Window, they guide open Customize the Quick Access Toolbar following this link https://support.microsoft.com/en-us/office/turn-on-the-ruler-when-composing-an-email-message-162d5ab2-f743-4f1f-818f-d7f1e996b1df      but I could not find it on Mac

Anyone can help me solve this problem. Thank you very much