Hello,
Working with UV mapping window could have similar function like geometry windows has:
- undo/redo
- select by material
- repeat last function...
BR, Hank
I would to include the selected saved groups too.

Undo/Redo and Repeat works fine for me in uv-window??
And selecting materials in outliner, selects them in uv-window as well.
here's what I mean:
In UV window I assign new color but after some time I change my mind...so undo/redo would be helpful
selection groups doesn't work either
and by the way... I tried to start new process (ctrl+n) but as you can see it doesn't work too.
W3D 2.2.4 / Win 10
BR, Hank
Ok you are talking about the segment phase.
Sigh, boring :-)
In the mean time you can select faces in the normal geometry window,
and invoke uv-mapping, in segment window just do continue directly.
Select more faces in geometry window and repeat unitl all faces are uvmapped.