From UVLayout Docs

headus UVLayout v1.21 {User Guide: About UVLayout} {User Guide: Load/Save/Update} {User Guide: Display} {User Guide: Edit Options} {User Guide: Optimize} {User Guide: Snap/Stack} {User Guide: Move/Scale/Rotate} {User Guide: Render} {User Guide: Pattern} {User Guide: Hotkeys} {User Guide: Quick Start} {User Guide: UVLayout as a Plugin} {Notes}