Create Admin Layout Variants for POWL:

1. Logon to development client and start transaction POWL_QUERY and switch to Details for a selected query.
2. Press the 'Layout variant' button.
3. A browser window for the POWL_MASTER_QUERY will start up.
4. Change the sap-config-mode from "X"  to "config" within the URL.
5. Now you can define your layout variant and save your changes.
6. Additionally, you can perform the follwoing two steps if you want to use your layout variant as default variant:
   • Logon to customizing client and start transaction POWL_QUERY.
   • Assign your created layout variant in selection field 'Layout'.