I'm trying to figure out how to handle a custom permission scheme using Sharepoint groups (rather than a local file on the server as it is right now). I have an aspx/AJAX type application that I can read the content of Sharepoint groups and correlate with currently logged on user to assign rights. This application has 5 sections, each of which can have 5 types of permission. My first thought was to modify a Sharepoint group to add 5 custom columns, each of which could contain information about who had access to what. name Production Inventory Process Consumption Bleaching tom EG C C dick EA C harry G C GA C So, Tom has EG access to Production, and C access to Process & Bleaching, etc. The problem with this is, I can't seem to add custom fields to a Sharepoint group (they all seem to be instances of the same list). Should I create special Sharepoint list types inherited from groups, that have custom columns? Is there a better approach to this problem anyways?

Hi, You can have these five section as five different subsites and apply permission on each site to these users. Does it help? or can you provide more information about each of these 5 sections like what kind of information they are storing etc? Regards,Manvir