Hello SimplySabrina,
Everything you enter on the estimates and invoices are also displayed on your customer's end. QuickBooks Online doesn't have an option to hide line items. Hence, it'd be best to remove the line items that are not intended for the customer before sending it.
Aside from the updates we're sharing within the QBO interface, you can also check out the QuickBooks Blog to see what's new.
Let us know if you need anything else so we can further assist you. Have a great day!
