Hi,
Thanks for contacting us here about this extension.
I would like to create sub categories. I got so many tables. My list is get too long.
Yes, you can navigate your cursor to the left of the category title, then drag'n drop it to the right or left.
You can go to our documentation for more information:
https://www.joomunited.com/joomla-documentation/droptables/354-droptables-manage-tables Hope it helps!
Kind regards,