You can't. Access maintains a single set of properties for a form. It does not maintain a set for each record. Therefore, the properties are for only the CURRENT record.
If you have some field in a record that you can use to determine if you want controls to be locked or unlocked, you can set the property in the Current event of the form.
If something Then
Me.fld1.Locked = Yes
Me.fld2.Locked = Yes
Else
Me.fld1.Locked = No
Me.fld2.Locked = No
End If