Hi,
my plugin is primary interesting for theme developers or persons how want to adjust there theme in the php-code.
If you have no problem with that, you may have a look at:
http://codex.wordpress.org/Function_Reference/add_image_size
With this function you can add additional image sizes.
The follwing page descriptes how to use this image-sizes:
https://codex.wordpress.org/Post_Thumbnails
Note: The plugin also only handles cropped sizes (as the name suggest 😉 )
