where is screenshot oprion

[zebra1979]

where is sreenshot 

[Soumen123]

swipe your palm from right to left on the screen

[VIKASxĐUHØON]

1st. volume down key + power button key(lock key)


2nd. in onehand operation toolbar

3rd. swipe your hand on screen

4th. in edge panel

[Sidhabhi]

There are few effective options like

Accessibility>Interaction and Dexterity>Assistant menu feature

[Sidhabhi]

or install one hand operation+ (samsung official app)

http://apps.samsung.com/appquery/appDetail.as?appId=com.samsung.android.sidegesturepad

[Ehsank]

Enable assistant menu, this is best way ,by this option you can also perform other important task such as screen off, navigation, sound, screen rotation, power off menu, notification panel and also specific app option available
To enable assistant menu just go to settings>>accessibility >>interaction and dexterity>>assistant menu>>enable and also click on it and enable>> assistant plus menu

[imankur]

1. Press (volume- )+(Power key) Together
2. swipe palm across screen (left-right or right-left)
3. Try Assistant Menu.