At this very moment we have to focus on other features like ordering groceries from online store or redesigning navigation on iPhone. But we have this one on our list as well.

Right now you can edit the default ordering of categories in the settings http://www.listonic.com/en-gb/settings (grouping tab).

Hope it helps,
Cheers,
Filip

I agree, being able to custom create categories would be a helpful feature in making the shopping lists follow the store layout. Instead of bouncing around and going back and forth from one section to another.

Absolutely! Would love to be able to edit the categories so that I can match them to my supermarket aisles.