Main settings should be like this. Your Notifications will automatically show, but it will be in an ugly position.
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Enable as seen in picture, from Notifications panel settings. When you see a notification on your lock screen, tap and hold, then position and resize exactly where you want it to be. Then go back and disable what's shown in the picture.
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Get Themes .....
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Configure which apps. I suggest you disable phone and sms as the phone's default notification will already show.
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Thank you!