Missing functionality.Draw document wizard - delete/add rows and copy/paste

Question

Scenario:
My customer is using 2007 SP0 PL47 and would like the ability to change the sequence of the rows of the draw document wizard and delete/add multiple rows (i.e. when you create an AR Invoice copied from several deliveries).
This customer requires the sequence of items on the AR invoice to be consistent with the sequence on the original sales order including text lines and subtotals. Currently we cannot achieve this when there are multiple deliveries.
Steps to reproduce scenario:
1.Create a Sales order with several items and use text lines, regular and subtotals.
2.Create more than one delivery based on the sales order and deliver in a different sequence than appears on the sales order.
3.Open an AR Invoice and u2018Copy fromu2019 > Deliveries. Choose multiple deliveries. Choose u2018Customizeu2019.
4.Look at the sequence of items on the Invoice. How can the items and subtotals and headings be moved around so they appear in the same sequence as on the sales order?
Current Behaviour:
In SAP B1 itu2019s not possible to delete or add more than one row at a time on the AR Invoice or Draw Document Wizard.
Itu2019s not possible to copy/paste a row on the AR Invoice or Draw Document Wizard.
Itu2019s not possible to change the sequence of the rows using the Draw Document Wizard.
Business Impact: This customer is currently spending a lot of time trying to organize the AR invoice into a presentable format. They have to go through the invoice and delete the inapplicable rows one by one (because SAP B1 does not have the ability to delete multiple lines at a time) and also has to manually delete re-add rows to make it follow the same sequence as the sales order.
Proposals:
Enable users to delete or add more than one row at a time on the AR Invoice or Draw Document Wizard.
Enable users to copy/paste rows on the AR Invoice or Draw Document Wizard.

Answer 1

Hi Rahul,
You said 'It is not at all concerned with Exchange rate during GRPO...' If that is the case how does the Use Row Exchange Rate from Base Document in the draw document wizard work? Does this mean 1 GRPO : 1 AP Invoice so I can use the base document rate?
How should I go about with transactions like these? That is adding an AP Invoice from multiple GRPO's having different exchange rates. What I am trying to capture here is that in the AP Invoice, base document rates should be used in the row item level and not the current rate when adding the invoice.  
Thanks,
Michelle