Drop Ship Cancellation

Hello,
 
We are using  BPCS v6.1 Release 1. Often users have customer order lines set up as drop ship and then create a drop ship PO against some of those lines. Then later on they may need to change the Customer Order line to a Non-Drop Ship order line so it can be Pick Released and Pick Confirmed but in order for it to show up as a Pickable item they would request the I.T. department to go behind the scenes and remove the drop ship flags from the customer order lines by setting it to 0 or just clearing what ever the flag is set to so that the items will show up in Pick Confirm. When users try to change the Customer Order Line with option 22 Drop Shipments to 0 it displays the following message.
 
"Only Drop Ship type of "3" or "6" is allowed "
 
I thought this may be the correc procedure to allow them to change it without my intervention.
 
1. Maintenance ( ORD700D2-01) : In line which we need to delete , please input Option 22 ( Drop Shipment Window ).
2. Drop shipment Window ( ORD700D2-09) :  Correct Drop Ship Type  into  6  ( the old value should show as  1 )
3.Purchase Order Maintenance( PUR500)  : Input Option 4  in front of line we need to delete .
 
4. They normally don't delete the line because they would like to Pick Confirm it but maybe the correct process is to delete the line and create a new line?
 
It seems like it would be a way for the users to set the Order Line to 0/ Not a drop shipment so they can do a pick release on it. So I was just wondering how others handle this situation?
 
 
 
 
Thanks