Tap which Sound/Vibration you would like to change, remember each Sound/Vibration will be unique
Scroll up to the top and Tap Vibration
You can now select a preset vibration or you can create your own custom vibration. So lets create our own, Tap Create New Vibration
It will start recording your New Custom Vibration as soon as you touch inside the large grey square and you can stop the recording at anytime with the Stop button.
The longer you hold your figure in the square the long the vibration goes. You can then play back your creation by tapping the play button.
Tap the save button at the top right when your happy white your creation. It will pop up a naming window, name it then tap save
And it should automatically be selected and your new vibration is in effect for alert you are setting