Deductions & credits

Thank you. I am very interested in something you wrote.  Are you saying you paid what you owed (I also owe this year) at IRS Direct pay and then submitted your tax documents separately without a check? If you did this, did you put documentation with your filed taxes showing you already paid the amount that shows up as owed? And if yes, what is this documentation and do you put it where you would normally put a check?