Can your UV editor do this? Thread

I released a new version of this project of mine a few days ago:

About:
Nightshade UV Editor extends the Maya's UV Texture Editor with tools, scripts and a UI that greatly speed up the time it takes doing UV work.

Features:
-Advanced UV manipulator: Less typing, more options.
-Orient shells: Orients shells straight.
-Orient edge: Orient UV shell(s) around a UV/edge selection.
-Stack shells: Stack shells on top of each other.
-Match shells: Match UV's to their closest neighbors.
-Straighten shell: Straighten edge loop and unfold shell around it.
-Straighten UV's: Straighten all edge loops in a UV selection.
-Multi-Stitch: Move, sew and scale like in 3D Studio Max (Stitch selected).
-Randomize shells: Randomize shells individually.
-Distribute shells side-by-side with even or no spacing in between
-Align UV's to min, max or average U or V.
-Align shells to min, max or average U or V.
-Snap shells to the UV range bounds (eight directions +center).
-Snap shells A to B: Connects two shells via two UV's.
-Spread shells: Unstangles and unstacks your shells neatly.
-Gather shells: Offset back shells that are outside the 0->1 range.
-Unfold UV's along U/V only with the click of a button.
-Normalize shells: Normalize along U, V, UV or UV with stretch.
-Layout UV's along a U or V -strip.
-Structured and logical user-interface with 4k resolution support.
-Custom Unfold/Relax/Layout/Normalize windows with extended options.
-Powerful new marking menu.
-Extended UV projection tools, such as normal-based mapping.
-New powerful snapshot window with multi-tile/UDIM support, and the ability to easily make 2:1 ratio snapshots.
-Integrated UV Set Editor: Native functionality fully implemented.
-UV Set Order Manager: Manually override the internal UV set order
-Texel density control: Scales shells to the same texel density.
-Fetch texel density from any face selection.
-Rotate, scale, transform and flip shells around custom pivots.
-Relative rotate/scale: Rotate/scale shells around their own pivots.
-Cycle pivot point position around the four corners of the selection bounding box or the UV range bounds.
-Measure the distance between two UV coords: in pixels or units.
-Calculate angle between two UV coords.
-Checkbox for the "Retain component spacing" -option.
-Buttons for saving/loading component selections.
-Buttons for Copy, Paste and Delete UV's.
-Buttons for pinning UV's (Maya 2016 and later only).
-NSUV top menu with a workflow guide as well as tips and tricks.
-Custom UV display window that collects all editor and shell display options in one place.
-Cycle edge colors: Change color on selected edges.

Commercial version: Creativecrash.com
Non-commercial version: Creativecrash.com

Edited by: Nightshade