Using New Outlook on Windows for personal email, calendar, and contact management
Hi
As someone who also relied heavily on Ctrl-F in the past, I found a workaround until this arrives to New Outlook.
After creating a draft of your email, go to your draft folder and select that email draft which you want to duplicate (with attachments, subjects and all). Then right click > copy > ctrl-v
Note: you can highlight multiple drafts (after the first copy) and ctrl-c/ctrl-v, it will duplicate multiple times too.