As we know that there is a standard feature called auto settlement. It's availbale in both module Accounts payable as well as Accounts Receivable. But one of the feature is missing in case of AP that is Prioritize settlement. You can not set priority for AP auto settlement. I mean to say that at the time of vendor transaction auto settlement which transaction system will pick first for settlement. As per my analysis the current system behaviour is LIFO. But in some cases it's not corrrect. So if there is an option for Prioritize settlement in AP also it will be a good feature.