Keeping your Luminar document organized is a very good idea, especially if you start to add multiple Adjustment and Image Overlay Layers.

Luminar QuickTip: Renaming Your Layers | Skylum Blog

For all new layers, you add to a document (except for the original image) you can choose to assign a custom name. 

 Just double-click on a layers name to edit it. 

Luminar QuickTip: Renaming Your Layers | Skylum Blog(2)

This is a great way to organize adjustment and image overlay layers in your project.

Luminar QuickTip: Renaming Your Layers | Skylum Blog(3)

Pro Tip: Be sure to add a descriptive name to make it easier to edit your photos if you ever revisit your project file