Xibo User Permissions

Hello, We want to create a student account for Xibo so they can upload images themselves. We would like to lock down there permissions so they can only access the layouts and media and nothing else. I have tried to set there permissions in the users dropdown bar where it says manu security and page security but it doesnt work.

Can somebody please help me?

Rgds

You will want to give them permissions to

Page security:
Homepage and Login
Layouts
Content

Menu security:

Design menu
-Layouts

Library menu
-Media

Top Nav
-Design
-Library

Additionally you will need to assign them view/edit permissions to existing in the CMS layouts and media files, so they can see them - without it they should be able to upload new files and create new layouts, but they will not see any layouts/media files that already exist in the CMS.