When you first implement the app, you’ll see the most recently used apps.
If you’d prefer to have a bit more control over your shortcuts, you could also trypreviously-mentioned Quickly.
Hangar| Google Play Store viaXDA
Hangar Puts Your Most Commonly Used Apps in the Notification Shade
Android: Even if you have a few dozen apps installed on your phone, you probably only use a handful of them every day. Hangar keeps track of the apps
