iPhone users have a lot of options when it comes to messaging. But there are a few things you need to know if you want to be able to select all messages in one go on your iPhone.

  1. First, open the Messages app and tap on the three lines in the top left corner of the screen. This will show all of your messages, including those that have been sent and received since you last opened the app.
  2. To select all messages, drag and drop them onto the line in the top left corner of the screen where they will be combined into one message.