New security system scenario question

Hello!

I have four bussiness classes: Group, Form, Report and Value. Groups have many Forms and Forms have many Reports, wich in exchange have many Values.

I need to create role for user, so he can edit only Values property of Report class. He also must have permission to navigate to Forms list view and Reports list view via Navigation menu.

So, i have created a Role like this:

	
[C#]
{
                    SecuritySystemTypePermissionObject TypePermission = OperatorRole.CreateItem(typeof(Group));

                    {
                        SecuritySystemMemberPermissionsObject MemberPermission = TypePermission.CreateMemberPermissionsObject();

                        MemberPermission.Members = @"Forms";

                        MemberPermission.AllowWrite = true;
                    }
                }

                {
                    SecuritySystemTypePermissionObject TypePermission = OperatorRole.CreateItem(typeof(Form));

                    TypePermission.AllowNavigate = true;

                    {
                        SecuritySystemMemberPermissionsObject MemberPermission = TypePermission.CreateMemberPermissionsObject();

                        MemberPermission.Members = @"Reports";

                        MemberPermission.AllowWrite = true;
                    }
                }

                {
                    SecuritySystemTypePermissionObject TypePermission = OperatorRole.CreateItem(typeof(Report));

                    TypePermission.AllowNavigate = true;

                    {
                        SecuritySystemMemberPermissionsObject MemberPermission = TypePermission.CreateMemberPermissionsObject();

                        MemberPermission.Members = @"Values";

                        MemberPermission.AllowWrite = true;
                    }
                }

This role have also permission to read all objects and to edit Value class object.

It all work fine, IF user first navigate to Reports navigation ListView node. After he opens a Report from this view, Values ListView property is editable. BUT if he opens Forms ListView first, then open appropriate Report from Reports ListView property of opened Form, then Values ListView property of opened Report is not editable.

How i can make Values property of Report class editable for user, regardless of wich ListView was parent of current Report DetailView?

Thanks!