Approval Procedure Question - changing an Un approved document or Approver

Question

Here is my situation.  I have set up an approval Stage with 1 approval necessary for Credit Memos.
From time ot time,  the approver needs to change the Credit Memo before apporving.
Also, from time to time,  the Originator of the Credit Memo needs to change the credit memo BEFORE it has been approved. 
From what I gather, 
1) The Approver can not change the Credit Memo BUT can Add the Credit Memo but only after approving it.
2) The Originator of the Credit Memo can not change the Credit Memo unless it has been rejected, and then it is not an easy task to find where the document can be changed.
3) Any manipulation of the documents from either the Approval Status reportor the Approval Decision report is not possible.
Am I missing something here or is there an easy way to modify a pre approved document?
Thanks in advance
Dana

Answer 1

Actually what I am trying to accomplish is have all Credit Memos approved.  I at the same time would like the person who is approving th eCredit Memo also make changes to the Credit Memo if changes need to be made.  The end user does not issue a Credit Memo (Update) until the goods are received back at their facility and checked.  At that time,  they would like the approver make the necessary adjustments if necessary and them update the Credit Memo.  I find it a bit cumbersome to have to send that Credit Memo back to the Origonator to be adjusted and then send it back for approval.
Am I missing something here?  Is it possible for the apporver to not approve it and then make th changesand then update it? 
Any other sugestions on how to handle this situation??
BTW Thanks for the quick responses!!
Dana