Install the Auto Clicker extension in your browser
Open the page where you want to expand all items
Click the extension icon to open its controls
Set the click target to the expand button or arrow on the page
Adjust the click interval if needed
Set the click count to repeat until all items are expanded
Enable any option for multiple clicks or continuous clicking
Start the auto clicker
Watch the page to confirm all sections expand
Stop the auto clicker once finished
Refresh the page and repeat if some items remain collapsed