How can I adjust payments manually in the Shopify dashboard?

Hey everyone! I hope you all are doing great. I need community help in a problem I am facing.

In my store, at the orders tab in dashboard, I want an option to change payments. Sometimes my customers send me advance manually and I want to have a option in my orders tab where I can insert that amount and the remaining amount gets settled automatically.

is there any way to do this and change the payments

Which payment method do you have in your store?