Data in this tab is visible only when Leave travel allowance is being given as Payroll reimbursement category in the salary structure. When you claim Leave Travel Allowance as tax-free claim then status of your LTA claim with voucher number is visible here for your reference. You can take two tax-free LTA claims in four year block and only once in a year.
From April 2020 the option to claim LTA is available only to those employees who are continuing in "Old Regime" - refer article for more details.