Access Control
The group mask value indicates the access rights a user should have in order to use a data record. To be able to set access rights for particular data records, you should use the PXDBGroupMask attribute to mark the data access class (DAC) field that holds the group mask value.
On a substitute form, to define the inheritance of access rights for an action that is implemented in the corresponding entry form, you can use the PXEntryScreenRights attribute.