Add Products for Pre-Order: Get the most streamlined approach to add "Unavailable" and "recently dispatched" items for Pre-Order. Indeed, even add Pre-Order at variation level.
Partial Payment Option: Allow clients to make "Halfway Payments" at the hour of Pre-Order. Just Pre-Order App to give this feature.
Publish Product naturally: Add items in forthcoming state for Pre-Order and let them distribute consequently on the set date and time.