Reference Cinema 4D Basic Features BodyPaint 3D UV Edit Menu
Function available in CINEMA 4D Prime, Visualize, Broadcast, Studio & BodyPaint 3D

UV Manager

Even the best paint tools will not help if your model’s UVs are not up to scratch. In this manager, you will find several powerful UV editing tools which you can use to optimize your UV mesh to allow for distortion-free painting. In particular, use these tools to avoid overlapping UV polygons (a common problem with complex objects).

Automatic UV
UV Packing
Relax UV
Projection
Transform
UV Commands