Hi John. 

There isn't one complete process that covers all of that. However, you can find these steps within our help guide. 

To set up and process remittances, full steps can be found here.

To process supplier payments go in to Suppliers > click Supplier payment from the top > select the supplier > fill in the bank account, date & cheque no. > click in the payment cell of the invoice you're wanting to pay > click pay in full from the top or manually type in the value you're paying, if not paying in full > save.