CMx provides options to restrict view and edit access at the contract level.
To access this feature goto Create or Edit Contract which you want to restrict access to and Click on the Lock Icon towards the top right of the Contract Screen.
This user action will bring up the Restrictions Pop Up where the user can select the user(s) and/or group(s) with whom the access of the contract is to be restricted.
Once the User(s) and/or Group(s) are selected, click on Save Changes to finalize the changes. This action enables the contract to be visible or editable or both for the set of user(s) and/or Group(s).