OK that answers the first part of my question I had. The 2nd part now from your answer is then, is would it be possible to change the atrributes of already created cats in the gallery? So in the Doom 3 cat I have PC, Xbox and Renders & Concepts. Would it be possible to have a query go through my gallery and make the PC, Xbox and Renders & Concepts cats allow uploads from more usergroups? I just have soo many cats it would be insane to go to each one in the admincp and click the required checkboxes to allow users to upload to those cats. I wouldn't want people to be able to upload right into the Doom 3 cat though, just the subcats inside the Doom 3 cat.
Thank you for your quick responses.