I am using Image Gallery (Classic Layout). In the Gallery I created some categories like Pages, Emails, Banners

etc. I removed the right click functionality for those categories and the images in that categories. Now my

requirement is that I didn't allow the user to upload new images in to that categories (Pages, Emails, Banners etc.).

But user can create new category and upload images in to that or User can upload images into Default folder. But

User can't able to modify(Edit, Delete) the categories and Images in those categories. How can I restrict the user. 

Please try to give quick reply..

Thanks in advance..