How do you change the notification sound time once you've received and email, text msg., etc.?

On the Note4 you could have a reminder sound that at intervals would remind you of a notice. You can have it so it made a sound once at the time of the notice and/or you could change the interval reminder to 10, 15, 30, etc. minutes. Where is the setting to change the frequency of the reminder setting on the phone so the frequency isn't every minute?