TL:DR  We need to bypass the shipping option while manually placing an order via the admin.  Currenly this isn't possible.  

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Ive had a request for manual order entry in the admin to be able to bypass shipping.  Its impossible to proceed without selecting *something*.  

The issue at hand is that we only use USPS.  Randomly, we have a customer who can only accept FedEx.  Unfortunately the owners do not want to add FedEx or UPS to Magento, against my recommendation.  

Their solution isn't elegant.  They've created a product that is just listed as 'FedEx Shipping' which they add to the order manually, then adjust its price to match what FedEx is charging.  It works, but at the bottom of the admin place order page its requiring a shipping method of what we currently offer.  We'd like to be able to bypass this, or have an option for 'No Shipping' so we can proceed to place the order.  However this 'no shipping' should only be visible in the admin.  

Can I add a shipping bypass to the admin order page but only the admin order page?