Features
Admin:
Create new color groups
Set color groups to each color
Add additional option images
Front:
Sort options by sort order/ sort options by A-Z
Sort options by color groups
"Add to cart" button to each option
Change quantity to each option
See an additional option image by click to option image
Also:
Compatibility with Import/Export module
For OC 3.X
Front Demo(click here)

Admin tutorial video

Front tutorial video