AR: Please help understanding the Receivable Class, Source and Bank account setup

Hello... !

   Need urgent help. We have to change the GL accounts at the bank level and update the receivable class and source. i have taken the following steps..

1. inactivate the current bank account attached to the receivable class
2. Inactivate the current bank account at the bank account level (change the current bank account name by adding "-OLD")
3. Add a new bank account with the same bank account # without -OLD (since the bank account is not changing, we want to keep the old bank acct #)
4. Update the GL ban account at the bank account level.
5. close the bank window
6. go back to the Receivable Class form