Log in as admin Navigate to Development > Debugging in site administration Set the following values and save: Display debug messages (debugdisplay): Yes Performance info (perfdebug): No Navigate to General > Site admin presents in site administration Press Create preset and create the following: Name: Test Once complete, press Actions > Download for your "Test" preset Open the file, confirm presence of the following: <DEBUGDISPLAY>1</DEBUGDISPLAY> <PERFDEBUG>7</PERFDEBUG> Navigate to Development > Debugging in site administration Set the following values and save: Display debug messages (debugdisplay): No Performance info (perfdebug): Yes Navigate to General > Site admin presents in site administration Press Actions > Review settings and apply for your "Test" preset Confirm under Setting changes you see: Setting name Plugin Current value New value Display debug messages core No Yes Performance info core Yes No Press Apply and then Continue Navigate to Development > Debugging in site administration Confirm the following values are set: Display debug messages (debugdisplay): Yes Performance info (perfdebug): No