This functionality is new as of version 4.1.
To Add Inventory Transfer Request Items from a Picklist:
Navigate to the ‘Inventory Transfer Request’ screen.
Click the ‘Picklist’ button.
The ‘Add Picklist’ dialog will open.
Select the ‘Picklist’.
Enter the ‘Order Qty’ needed.
Click the ‘Post’ button.
The list of Products available on a Picklist is restricted to the Products that already exist in the Destination Area’s inventory.