Thank you for being with Samsung and sharing your concern. We would like to inform you that Power Off and Restart Tab does not show on lock screen as it is a default feature of the device. Be sure to hit ♡ when you find an answer that works for you. For Further assistance, you can get in touch with us via Live Chat option by following- http://livechat.support.samsung.com/Customer_new/IN. You can also connect us via Samsung Members web community by following mentioned url-https://community.samsungmembers.com/en_IN#/
