UV Tools - A collections of tools for the UV editor

Smart UV Sync - Right click syncs selection mode and selection

Before

After

Unwrap In Place - Unwrap Islands in place withoute packing it

Sharp Edges From UV Islands - Add sharp based on UV Islands to fix shading on uv unwraped meshes. With the only UV Island Borders option it will not add any sharp edges to for example an uv seam on a cylinder.

UV Cut - Cut an Island, works more similar to cut in Maya

Smart Seam - Alt 2 to remove selected seams and sharp

(WIP, was not finished, will add more operations in next update)