Security on UDC Table Data

I am trying to set some security on the UDC table data. On P4210, on the adjustment schedule (Additional Header Information Tab) I need to display and allow visibility of values only starting with DMED*. The values come from UDC 40/AS and also stored in table F4070. Considering that I have put row level security as below

F4070 Data Item - PriceAdjustmentScheduleN (ASN) From DMED0001 Through DMEDZZZZ View/Add/Change/Delete 'Y'

F0005 Data Item - UserDefinedCode (KY) From DMED0001 Through DMEDZZZZ View/Add/Change/Delete 'Y'

I have also put a similar range security on F4201.ASN and F4211.ASN.