Iwidget for Android
This app/widget does a great job when only used for 1-3 apps you want assign it. After 4-6 apps it goes completely black, and all you have is a black rectangle to move around. You have to uninstall then reinstall to get rid of it.
(^o^)
very useful I highly suggest it
by R####:
It is really touchy and twice I inadvertently deleted an app shortcut which I had added to the folder. Works on Samsung Galaxy Tab S2 8.0" tablet running Android 5.1