Where to define Step4c Extra Withholding amount on 2020 W-4 in Munis

I have a new hire who filled out Step 4c (Extra withholding) on the new 2020 W-4. Where do I put that in Munis?

• Munis
• Employee Deductions

1. Go to Employee Deductions. (Payroll>Employee Maintenance>Employee Deductions)
2. Search for the employee and Federal Deduction code. Click Accept. 
3. Make sure the Calc Code for the Deduction is an 06-tax table plus amount.
4. Click Update. Define the Extra Withholding amount in the Employee Amt/Pct field. Click Accept.