To set up discretionary access control permissions, use the Discretionary Access Control tab on the Properties side panel:

NOTE. The setting is available only if the discretionary access control method is used.
Discretionary access control parameter settings can be used to determine actions of a user or a user group to work with an object.
The Groups or Users box displays a list of security subjects that have permissions to execute operations with objects. If the subject is selected, a list of access permissions by general operations (edit permissions, read, edit, delete) is displayed that can be separately changed for each security subject.
NOTE. Multiple selection is available for object classes to set up parameters on the Access Permissions side panel. After the permissions are determined, access permissions are set for each selected class object.
Determine access control settings:
NOTE. If object reading is denied for the user, this object will not be displayed in the object navigator for this user and on the Consists Of or Included In tabs for the objects that use the current object or are used by this object. If the user is denied to execute some operations with objects, the corresponding menu items are unavailable in the object navigator for this user. For example, if the user does not have the Delete or Write permissions for object, the user does not see the Edit, Delete, or Cut menu items.
Set permissions not from the Permissions list
Distribute set permissions for child folders and objects
Enable the mode of inheriting permissions from the parent object
Set up permissions for dependent objects
See also:
Access Control Settings | Setting Up Mandatory Access Control Parameters