Cinema 4D / BodyPaint 3D Program Documentation Reference BodyPaint 3D Layer Menu
Function available in CINEMA 4D Prime, Visualize, Broadcast, Studio & BodyPaint 3D

Duplicate Layer

This command creates a copy of the active layer (or layerset). If, for example, you want to test changes to a layer without changing the original, simply duplicate that layer, make the original invisible and edit the duplicate.