Hi Hiroaki.
I really love your plugin so much.
One question. How do I distinguish between say "Setting0" and "Setting1". So for example I have a set of custom sizes for all posts and then under "setting 1" I have a custom size for only a certain category. ...but then I end up with two "custom0" sizes.
...in my template file I normally call the size like this:
<?php attachment_toolbox('custom0'); ?>
through a function made by http://digwp.com/2009/08/awesome-image-attachment-recipes-for-wordpress/
I need to understand how to specify in my template which custom0 to use.