Glad you've joined us here today, @Stuart7.
I've come to provide you with some details about combining multiple invoices in QuickBooks Online.
At this time, being able to combine multiple invoices into one isn't an option for us. The best way to handle this while the feature is not yet available to copy and paste the old invoice to the new one manually.
I can see the importance of this can have to you and to your business. QuickBooks strive hard to make the product work the way your business needs. That being said we are adding features based largely on the preferences that we receive from our customers like you.
I'd encourage you to visit our QuickBooks Online Blog to be updated with our news and updates including product improvements.
Also, if you have any "How do I" questions concerning QuickBooks you may check out these link below for some references:
This should get you moving today.
I'm still here to help if there's anything else you need about this. Just leave a reply below and I'll get back to you. Have a good one!
