Ability to save or lock send setting so someone else can review
I wish there was a way to save or lock the send settings so someone else can double check easily. It's important for someone else to review the selected audience and send time, along with other settings. If there are errors, there should also be the ability to unlock and save by the other person to make corrections.
I used an ESP that's over 20 years old, and it had this feature. Other ESPs had this feature as well.