Edge Lighting on the Motorola Signature?

Received my device today. Love it so far, but am a bit surprised to find the 'Edge Lighting' options missing from the Personalization menu in the settings.

Searching online doesn't give a definitive answer on if Motorola displays with a 'half-curve' like the Signature and specific Edge 50, 60 and 70 models even come with the Edge Lighting feature.

Do any of you have this option in their menu? And if not, do you have any other suggestions for something that can replace the function of a notification LED?