Look at calendar while writing an email
When I want to look at the calendar while I am in the middle of writing an email, it used to save the draft and let me go back and forth from that email easily. Now, it doesn't automatically save it as a draft. Also, don't make me go through all the feedback items in order to find out if a new one exists. Honestly, that takes so much time.
Shiva Prasad commented
Calendar option to be available when drafting a mail to avoid going back and forth to check the availability of self and others.