Can I order pre-orders and in-stock items on the same order?
Yes you can.
Add all your items to the basket, and when you reach the checkout, there is a button as shown below that says "Dispatch Items As They Become Available"
This will split the basket into release date and create subsequent orders on our system.
If you have not selected "Dispatch Items As They Become Available" the system will combine all products into one order, the warehouse will not be advised to pick any items that are in-stock if the order is combined with a pre-order, we can split the order down manually after the order is placed, however this does cause some confusion with orders and it may make your entire order look complete, this is not the case but due to the warehouse system integrations, the orders will look complete, however the warehouse system does know that there are outstanding orders and they will be fulfilled when the products come into stock.