Providing Security and Permissions for Timesheet is under development, Most probably this feature will be available in next mid week.
Please do share if you have any suggestions about this feature.
Also Ganib 2.0 is already released an it doesn't need to add any stored procedure.. It is more stable than Ganib 1.3.
To Know whats new with Ganib 2.0 Pleas go through the below link..