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Blender Friendly Pivot is an addon that brings much of Autodesk Maya's Pivot Transform functionality to Blender, letting you change Pivot Orientation, Origin, and 3D Cursor position with fewer keystrokes.

Multi Camera Setup Addon (MCS) is a Blender addon for setting up camera background images and switching between multiple cameras in a scene. It suits photogrammetry scenes where setting up each camera takes time.