This series is very long but it's chock full of great Note 4 features, tips and tricks. This is video 1, but there are 3 of them:
Samsung GALAXY NOTE 4 Hidden TIPS & TRICKS, Advanced Tutorial #1: https://youtu.be/V2-yuK4vUbA
Nice video, but setting S-Voice and/or Google to activate from anywhere eats more battery and slows the phone down. they're not bad features, but you should be aware of the side effects.