Answer
That Assistant is the same one available from the Navigator as 'Receive Shop Order Manually' — it's the identical underlying page, just launched with a different subset of steps enabled and a different display name depending on which command triggered it. You can navigate to it directly (for configuration in Page Designer, for example) using the address .../assistant/ReceiveShopOrder/ReceiveShopOrderAssistant, rather than needing to click through 'Approve' each time to reach it.