Learn how to create custom rigs from scratch using Auto-Rig Pro's "Empty" rig feature in Blender. Explore the basics of empty armatures, rig definition, and bone manipulation. Discover techniques for adding and deleting bones, adjusting settings, and incorporating limbs into your custom rigs. Follow along with quick examples for creating humanoid and spider rigs, gaining practical insights into the versatile rigging possibilities offered by Auto-Rig Pro.