Hi, Part 1 of this video shows you 14 useful settings/features on the Nintendo Switch. Please see Part 2 for more useful features. Listed below is the timestamp of each setting/feature.
0:05 No.1 Flight Mode
1:03 No.2 Battery Level
2:00 No.3 Change Display Colours
3:08 No.4 Changing Mii in Mario Kart 8
3:41 No.5 All Software
4:11 No.6 Wired Pro Controller
5:14 No.7 Can you use your Switch in another Dock
5:48 No.8 Extend Playtime
6:48 No.9 Kickstand
7:24 No.10 Lost Controller
8:27 No.11 Themes
9:07 No.12 Sync a Pro Controller
10:08 No.13 JoyCon like a Wiimote
10:50 No.14 Screen Lock

Many thanks Vince.