You've packed a lot of great and useful features into your Form Manager plugin, I am thoroughly impressed. I noticed on your website that you have a "custom submission behavior" plugin. This looks intriguing to me and I have some ideas to put it to use. Can you give me any more documentation on this besides what you have in the comments of the file? Is this plugin active on all forms or can you select which forms run the custom actions?
Among other things, I am trying to make a form that will take submitted data and create a WP user with that information. Should this be possible with your extra plugin?