Here we would like to draw your attention to SE16USRACLEXT transaction code in SAP. As we know it is being used in the SAP BC-SEC (Security in Basis) component which is coming under BC module (BASIS).SE16USRACLEXT is a transaction code used for Data Browser USRACLEXT in SAP.
It comes under the package SAIS_BCE.
Transaction SE16USRACLEXT technical data table
|Purpose||Data Browser USRACLEXT|