Happy to use, but few Improvements required

I use Sage Intacct for the Accounting of Orders to cash activities of my clients. I face problems in 1) Credit memo application, once the credit memo is wrongly applied to an invoice, though the application can be reversed, there is no facility to make changes in the credit memo or the invoice. It would be helpful if you can allow the software to do that. 2) In the posted payments window of the AR module, it would be helpful if I can also view invoice/document no. to which the payment was applied in the list of payments. Currently, the view is set up in such a way that I had to open the payment to see which invoice/document no. it was applied to. 3) The process to create an advance is lengthy. Could you facilitate it creating in the cash application window in a few clicks? 4) When viewing a particular invoice, if I want to look at the next invoice, I had to come out of the invoice and click on another invoice to view it. Can you keep the next option in the invoice screen itself to easily move from one invoice to another? 5) Can you facilitate an option to apply an advance payment open on an Accounts Receivable to be applied to an open invoice of another account receivable which could be a child account of the former one. 5)