I receive sms text messages using Android Marshmallow on a Nexus 6. Later when I want to see them again, often I cannot find them. Even just a few minutes later, I can't get back to them. Where is a list of each sms text message in the order received? I have been using Hangouts for sms but wondering if I should go back to Messenger. Also, how can I insure that a sound alert occurs when I receive an sms text?