There are little boxes at the right of the messages. You check those boxes and at the bottom of the screen there is a Button "Selected Messages" click on that and it will give you options. You can download all the messages to your computer if you want and you can check the whole day's page at a time or you can just delete the entire box in one fell swoop.
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My newest Grandson, Caleb Austin, was born May 29th. I am now Grandma to 4 precious babies. I am so blessed!!!!