Below are simple steps to select/unselect all checkboxes in a classic report: 1. Create a page with a classic report based on a sample query select apex_item.checkbox(1, EMPLOYEE_ID) selectemp, EMPLOYEE_ID, FIRST_NAME, LAST_NAME, EMAIL, PHONE_NUMBER, HIRE_DATE from EMPLOYEES 2. Add static ID : emp on the classic report region 3. Add below Javascript on the page function handleClick(cb) { if (cb.checked === true) { $('#emp input[type=checkbox][name=f01]').prop('checked',true); } else { $('#emp input[type=checkbox][name=f01]').prop('checked',false); } } 4. Change the heading on the SELECTEMP column of the report to below 5. Ensure you set 'Escape Spe...