[bob_romijn]

Now that is strange....... Several experienced people are telling something opposite......
I'm looking into my 5.0 environment and I'm 100% sure it is not available as an action under "Create Sell Shipment", and I'm another 100% sure I'm using the default screenset.
So I'm wondering how other systems have it.

GOing a bit in depth here, I see this "Manual" action only available under "Create Buy Shipment". When you get the screen in front of you, you have the ability to build a Sell shipment by chosing the appropriate Perspective.

Nothing prevents you to create a actions menu yourself and use this action also for the sell side. However the default setting of "Perspective" will be Buy I think.

Perhpas this helps you a bit.