It's great to see you here, @arjanitor,

I can share some insights on how to print multiple invoices in QuickBooks Desktop.

You can print multiple invoices in QuickBooks Desktop. To do that, you'll need to open the sales transactions one a time, then mark to Print Later box. This way those items are added to the print queue. Let me guide you through the steps.

1. Go to the Customers menu.
2. Choose Customer Center.
3. Tap the Transactions tab.
4. Select Invoices.
   
5. Double click the transaction then mark the Print Later box at the top.
   
6. Click Save & Close.

Once done, you can now start printing your sales forms. Follow the steps below:

1. Click the File menu.
2. Choose Print Forms.
3. Pick Invoices from the list.
4. Select the A/R Account you want to use.
5. (Optional) Mark the invoices you want to print, then click OK.
6. Hit Print.

That should get your work done, @arjanitor. Let me know if you have any questions. I'll be around to assist you with QuickBooks. Have a great day!