On the StoreHub app, there are 2 ways to makes your Notes appear on the receipt when making a Pre-Order.
How to Add Notes to Pre-Orders
Create a new Pre-Order > Select customer > Tap the total amount in GREEN at the bottom of the page > this page will pop up for you to Add Note:
Add a Note to the transaction by selecting a product box first > tap the item when it appears on the checkout list on the right hand side.
A popup will appear for you to Add Note: