Hi LillieG49!
Thanks for reaching out to the Community! Once your email automation has been activated there is not a way to add/remove emails from the series, or change the schedule. You can make a copy, add/ remove emails and make any other changes and then activate the new series. Don't forget to deactivate the old series! If you would like existing subscribers to get the new email you can also send it to a list as a one time send.
We are tracking the request to add emails to an active series. I have tracked this on your behalf and we will send an email letting you know once this has been updated.
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