Keeping your Luminar document organized is a very good idea, especially if you start to add multiple Adjustment and Image Overlay Layers.
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.
This is a great way to organize adjustment and image overlay layers in your project.
Pro Tip: Be sure to add a descriptive name to make it easier to edit your photos if you ever revisit your project file