How do you adjust a Sales Order without it converting to an invoice?

SOLVED

I am working from the Student data files for Sage 50 Accounting 2013; I am being asked to adjust a Sales Order to change some information, but I have already done this twice and it has removed it from the system as a Sales Order. I understand that you can adjust a sales quote without it converting, but how the heck can I do it with an order?

It says: "Edit sales order #13-1 from Lovely U Cosmetics; change the contract item by entering LC1 (LC1 is an inventory item - reserved items) as the item number...The quantity ordered (1), price and terms are unchanged. The original Sales Order just had a description and $amount.

Not sure how to make this work and have my order not disappear until I am ready to fill it and convert to an invoice. 

Can anyone shed some light :-) Thank you