Good afternoon, @Susan N.
Welcome to the QuickBooks Community!
I can see how beneficial this could be for you and your business to not print the zero lines on a report from your QBDT. However, at this time, the option to not print zero items under the preferences section is unavailable.
You can export the report into Excel and make any changes/ remove any zero items from there.
Feel free to reach back out if you have any further questions. Have a wonderful day!