Step1. Go to Tx- SMOD.
Step2. To find Enhancement press F4 button. From the POP Up screen, Click on the + button for additional selection . Here U can choose what type of enhancement U r searching.
Step3. Let’s choose S – screen enhancement.
Step4. All screen enhancements are appeared.
Step5. Go to Tx: SE11 .All Enhancements provided by SAP stored in the table: MODSAP.
Step6. press F4 against TYP field and from the domain fixed value search option choose- S.
Step7. Execute it.
Step8. It shows all Screen enhancements.
SAPCODES 